error 80070490

trying to install security update KB925902. Continuously fails error code
80070490 which is not listed. How do I complete installation or should I
ignore update?

The real questions are WHY this happens and WHY it can't be found on the msn site itself.
I had to google to find this article.

i tried to solve it by doing what you just mentioned, but i can't seem to
find Windows Installer Clean Up after i install it, so i cannot use it... any
ideas why? it just doesn't seem to be installed in the computer. weird... and
i cannot follow the rest of the instructions 'cause i can't remove ,Net...

The freaking installer cleanup tool made things worse! Now not only is the
old .net framework still installed on the computer, but now i can't uninstall
it through the control panel! what the hell!
i tried to re-update it and
it failed again too.

We have a Vista computer failing with the same error code. We can't find a
reference either. We contacted Microsoft and got a completely different set
of instructions:

The issue can be caused by a damaged .NET Framework component. At this time,
let's refer to the following steps to troubleshoot it:

Step 1: Download Microsoft Windows Installer CleanUp utility
============================================
1. Visit:
http://download.microsoft.com/downlo...BD/msicuu2.exe
2. Please save the file on your Desktop
3. Please double click the msicuu2.exe file to install it onto your computer.

Step 2: Remove .NET Framework 2.0
===========================
1. Click Start Button -> All Programs->Windows Installer Clean Up.
2. Please locate and remove.NET Framework software.
After that, please perform the following suggestions to reinstall .NET
Framework 2.0 and its update.

Step 3: Reinstall .NET Framework Version 2.0 Redistributable Package and its
update
================================================================
Please download and install the following updates one by one using sequence.
Microsoft .NET Framework Version 2.0 Redistributable Package (x86)
http://download.microsoft.com/downlo...a/dotnetfx.exe
..NET Framework 2.0 SYSTEM.WEB.DLL Security Update for Windows Vista
http://www.microsoft.com/downloads/d...DisplayLang=en

Note: When the “File Download” window appears, please click the Save button,
and follow the directions to save the file on the Desktop. After downloading
all setup files, please double-click on each one to install them one by one.
However, if any error message is encountered when installing .NET Framework
2.0 and the update, please capture a screenshot for further research.

Our problem was solved by removing and re-installing .NET 2.0 manually.

Windows Update is now working correctly on the Vista machine.

I followed the instructions and got a message box about this program being an
unknown publisher and it wanted me to confirm to run the program. When I
confirmed to run the program I got a second message box that said,
"F:\WindowsUpdateAgent30-x86.exe is not a valid Win32 application".

So you can see this did not work for me.

Oooops ... no, you don't.
F:\WindowsUpdateAgent30-x86.exe would mean that you are attempting to
install the Windows Update Agent from drive F:\
Is there an F:\ drive on your system ?
Download the WUA and move it to the drive where Windows is installed to.
usually, C:\. Then install it from there.

Why don't you have a Vista DVD. You should have been provided with some
means of restoring your system with either Recovery Disks or a Vista DVD.
For OEM versions, you'll need to contact the manufacturer/retailer.

Ignoring updates is NOT recommended, because the updates are for YOUR
security, so your computer may be hacked if you never install updates.

Just go to:

http://www.microsoft.com/downloads/d...displaylang=en

Save the file to your desktop and run it from there.

If you want to verify windows update is working, then try to install an
optional update from the the windows update control panel (if like me there
were no other important updates that needed installing)

I THINK I FIGURED IT OUT!!! Forgive my enthusiasm, but I have been battling
this Vista Error 80070490 problem for almost two years now. Microsoft has
been no help at all, and HP did not give me the Vista Ultimate disk when I
bought the laptop so updating using the disk was not an option.
Today I manually downloaded Windows Installer 4.5 from the following webpage
and saved it to my desktop; http://support.microsoft.com/kb/942288/en-us
Once that was downloaded, I installed it on my PC.
I then downloaded the System Update Readiness Tool for Windows Vista from
the following webpage and saved it to my desktop;
http://support.microsoft.com/kb/947821
Once that was downloaded I installed it on my PC.
These installations seemed to take a few hours. At times it looked like
things had froze up. I didn’t mess with anything and just let it do it’s
thing. A few hours later they were both installed. I don’t know which one of
these programs done the trick, but I really don’t care at this point. I
opened the Windows Updater, and searched for updates. Things immediately
started happening that I had not seen in almost two years. It first updated
the platform with service pack 1, then all the other updates I have not been
able to get.

I managed to install the clean up utility, but, like most of us, I could not
find .NET Framework 2.0 in the list to remove it. Help! How come Microsoft
hasn't come up with a reasonable response for those of us who are still
suffering?!! How long till they come through?

Thank you for your good advise it was very helpfull, Infact I
contacted microsoft through the website you suggested and they were very
helpfull, they are
sending me a replacement dvd free of charge.

the last update was an IE7 update KB960714
is that the same??

I tried what MS support suggests: in place upgrade. This failed also after a
very long process of trying to do the upgrade.

0x80070490 - ERROR_NOT_FOUND
Corrupted System File; Need to perform an in-place upgrade or reinstall of
the OS. wipe and reload.

Well lucky for you and thanks for the info but didn't do nothing for my
vista....still got the 8070490 error, I'll just have to keep reading, trying
and hopefully there IS a cure somewhere.

I tried the Windows Installer 4.5. I'm running Vista, but none of the 3
downloads for Vista would work. All tried to update and then gave me an
error that said 'this update doesn't apply to this system"

I'm running Vista.

I tried to install Windows Installer 4.5, but each of the Vista downloads
said that this update is not compatible with my system.

I then went to your 2nd link for the Windows Update Readiness Tool. That
says you get it through Windows Update, which of course does not work as I am
under the Error Code 80070490. On the bottom of that page under Information
for advanced User, I went to the link for Windows Vista and downloaded it
(KB947821) and installed it. This took some time but it eventually completed
the installation.
I then ran Windows Update and got the same old error 80070460.

After Cleanup could not find .NET Framework, I went to the next link to
install .NET Framework v2.0 Redisributable Package and after running it, it
said: .NET is already installed as part of your operating system.

I then went to the next link for the .NET Framework 2.o Security Update for
Vista and running that told me that it was not compatible with my system.

I tried this same thing. I have a drive C and drive D. drive C is the main
drive and D is the recovery drive. I followed the instructions above and
installed on drive D. I received an error trying to run the program not a
valid win32 program. I moved to drive C like you suggested and still receive
the error.

I tried all of these fixes and eventully put in my VISTA cd to use the
upgrade option. However, the "upgrade" is not available and it says the only
option is to re-install vista (i.e NUKE AND PAVE). I would prefer to find an
option that won't take me 2 days to re-install all my software, printers,
etc.....this donesn't seem like a good option....any other suggestions?

i had this exact same problem and looked all over the comment boards and
troubleshooting forums all over the web and tried every single possible
solution (with the exception of the DVD "upgrade" solution which i was saving
as a last resort) with no success

Finally, on my last possible solution (before i went with the "upgrade") i
went on the "windows Update" history and found the exact date when windows
updated "Successfully" worked prior to the "Failed" messages and simply did a
system restore back to that day! After about 10 minutes while my laptop
restored itself back to 12/21/08 (the last day that windows update worked
correctly) i restarted it and the typical things were warning me (anti virus
out of date and firewall setting , etc) but after i updated those, i ran
windows update once again and everything went smoothly! Now there are no
errors and windows update worked perfectly

i hope this helps you all out because i was frustrated that i paid a little
over $1900 (in late July 2008) for a fully loaded XPS M1530 with everything
you can imagine on it, AND WINDOWS UPDATE WASNT WORKING PROPERLY just 5
months later!

BY chance - do most people that are experiencing this problem have Norton
Internet Security? If you look at your installed updates - it will show you
when the last update succeeded. The Windows Defender and Malicious Updates
have worked even with the 64x updates fail. Mine go back to when Norton
Security center was installed. I turned it off, but still get error - may
try uninstalling Norton and see if it corrects it. I will repost afterwards.

did your update service stop working on the 18th December 2008
mine and another persons did.
my last update was the Internet explorer 7 security update KB960714

i tried everything else as well... still nothing.
just trying to find the link

Did you look in the registry for the .NET file? I had some issues with the
..NET Framework and found it under HKEY_LOCAL_MACHINE | SOFTWARE | Microsoft
| .NETFramework. I had to delete the version in question; in my case it was
v2.0.50727. I deleted that key and was then able to proceed. ***NOTE***
Messing with the registry could cause the system to not work. I'm not saying
this is the way to proceed but it worked for me.

I'm not good at this techie stuff. Tried to find .NET Framework (as you
suggest) and came up with (some same as yours), but too scared to delete/make
changes in the Registry. Can you guide please? OS; Windows Vista SP1:
THANKS......
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\clr_optimization_v2.0.50727_32\DisplayName : Microsoft .NET Framework NGEN v2.0.50727_X86
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\clr_optimization_v2.0.50727_32\Description : Microsoft .NET Framework NGEN
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\clr_optimization_v2.0.50727_32\DisplayName : Microsoft .NET Framework NGEN v2.0.50727_X86
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\clr_optimization_v2.0.50727_32\Description : Microsoft .NET Framework NGEN
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\clr_optimization_v2.0.50727_32\DisplayName : Microsoft .NET Framework NGEN v2.0.50727_X86
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\clr_optimization_v2.0.50727_32\Description : Microsoft .NET Framework NGEN

***NOTE**** THIS IS NOT THE COMPLETE LIST (because i can't insert more than
30000 characters)

I haven't worked with Vista yet so these steps are for XP...
The first thing you want to do is back up the registry. In the Registry
Editor on the menu bar go to File | Export. Name the file something you can
remember, I usually put the date in it to help me and then save it to a
location easy to get to, like C:\temp\ or something. Now that you have a .reg
file there, if there are any problems with the registry, just double-click
the .reg file and it will ask if you want to add it to the registry. Try it
out before attempting to delete anything.

Now that you have a clean snapshot of your registry that you can reload to
put it back as it was originally, go in and delete one of the keys. Reboot
the machine and see if you have any glitches. If yes, reload the saved .reg
file; if no, delete another key and repeat. This is slow and tedious but if
you're not comfortable with the registry this is the only way to do it
yourself.

http://support.microsoft.com/kb/322756/ explains how to backup and restore
the registry for Vista.

Neither of you gave an operating system, service pack level, etc.
So - let's start from what we have, build on it, and continue on.
Let's start by asking you for a bit of further information...
Please provide Operating system (edition and service pack level,
the more detail, the better.):

Start button --> RUN
(no "RUN"? Press the "Windows Key" + R on your keyboard)
--> type in:
winver
--> Click OK.

The picture at the top of the window that opens will give you the general
(Operating System name) while the line starting with the word "version" will
give you the rest of the story. Post _both_ in response to this message
verbatim. ;-)

After you do that, you are referring to this KB Article:
http://support.microsoft.com/kb/925902
.... correct?

Have you attempted to download the update for your specific operating system
and service pack level and install it manually?
http://www.microsoft.com/technet/sec.../ms07-017.mspx

Have you reviewed how others have resolved the issue you are stating you
have (perhaps some newer posts on the matter?)
(83 results for the error number you gave, sorted from newest to oldest...)

No - you shouldn't have to go buy a new DVD (Vista comes on DVD.)

You should get those who sold the system to you to provide the installation
media to you that you are entitled to. In other words - whom ever you
purchased the system from needs to provide a way for you to return the
system to it's 'as sold' state (if this was not an
individual/person-to-person purchase) and you should demand they provide you
with the instructions how to do this and/or the DVD you need.

0x80070490 E_PROP_ID_UNSUPPORTED
The specified property ID is not supported for the specified property set.

MS07-017: Vulnerability in GDI could allow remote code execution
http://support.microsoft.com/kb/925902

Related Knowledge Base Article:
Stop 0x0000007F error when you print from Windows XP or Windows 2000 with
GDI security update 925902 installed
http://support.microsoft.com/kb/935843/

Certain programs may not start, and you receive an error message on a
computer that is running Windows XP Service Pack 2: "Illegal System DLL
Relocation"
http://support.microsoft.com/kb/935448/

Looking at the date of the Knowledge Base article, this is an old update...

It seems to be mainly a fix for a bug in Windows related to certain print
drivers and Windows crashing. It maybe listed as a security update, because
it has the potential to be used to run remote execution code.

You might try bypassing it by installing Vista Service Pack 1 or 2 if you
have Vista.

If you are having the issue on XP, try upgrading to Window XP Service Pack

http://support.microsoft.com/kb/925902

I have the same problem with the error code, this is how I fix it hope it
work for you guys too.
download the Microsoft Sync Framework Runtime Native v1.0 (x86) and run it,
that is all the problem solve for me.
I can't find it on Microsoft supports site, I have to go google search the
link
maybe should try my way to fix it

When i went through the control panel to look at my
installed programs, the microsoft.net framework was still there. so i tried
uninstalling it from there and it said "This action is only valid for
products that are currently installed". So that microsoft install cleanup
tool didnt work, i found the .net stuff and deleted it with the tool before i
ttried uninstalling through the control panel.

Now what am i supposed to do without any .net framework and no way too
reinstall it?

I spent forever figuring this out. There is some hijackware blocking windows
update.

The standalone Window Update Agent (Wusa.exe) can be used to apply security
and windows updates one at a time (.msu standalone versions of the updates
which can be found by searching microsoft knowledge base). When you get
completely up to date, the hijackware gets blocked. I applied the last 12
updates one after another and the fix was in one of those. It is unfortunate
that I cannot pin down the exact update.

This approach has to faster than an in place upgrade.

Here is a simple solution that has worked for me. I downloaded and installed
a 30 day trial version of ErrorFix (registry cleaner). It recognized the MS
updates, downloaded and installed them. When I checked the update history for
vista the updates were listed there. However, windows updater still won't
work and gives the same error. But at this point I have had enough and will
purchase the registered version of this program and use it to obtain MS
updates. I have been checking the internet about this problem and it seems to
go back for quite a few months. But where is MS in helping to solve this
problem. Maybe my next purchase will be an Apple computer....

If you ever think your Registry needs to be cleaned, repaired, boosted,
tuned-up, or optimized (it doesn't), read and draw your own conclusions.

None of these rubbish work and every link I tried to download - none of them
work.

If I to upgrade from Vista to 7, will this go away?

This error is now effecting my iTune/iPhone firewire upgrade.

Can someone come back to me?

I had the same problem (80070490) with Windows Update on Vista 32 bits.
I tried everything I could find on Microsoft and other forums, nothing
really solved the problem, so what I did was download the updates directly
from the Microsoft site by entering the update code on the search bar. It
took me to the download page and I installed by myself all missing updates
which would not install.
Windows update is working fine since.

Microsft needs to jump on what quick? The fact that *your* computer is
messed up but millions of others are not - so it is obviously their fault?
Yeah - I bet they will get right on that. ;-P

10/100/1000/10000 problems does not an incident make when you are talking
1000000/10000000 systems in total. Something is wrong with *your* system -
something corrupted it/messed it up bad. Could be a whole bunch of things -
even back to the original installation (or most likely imaging) from the
manufacturer. Given that not every Microsoft Windows user (not even 50%
from what I have seen, I'd venture to say less than 2%, probably less than
1% - but that is pure speculation by observation) is having the issue - it's
more likely an issue with the specific systems than an issue Microsoft
caused and should fix. (They have caused and had to fix problems in the
past.)

So - let's go through your problem *if* you are wanting to fix it.

You should get the edition and version information...

Start button --> RUN
(no "RUN"? Press the "Windows Key" + R on your keyboard)
--> type in:
winver
--> Click OK.

The picture at the top of the window that opens will give you the general
(Operating System name and edition) while the line starting with the word
"version" will give you the rest of the story. Post _both_ in response
to this message verbatim. No paraphrasing - instead - ensure
character-for-character copying. That's the edition (in the top picture)
and the exact version number in detail (the 'version' line.)

Is your Operating System 32-bit or 64-bit?

What version of Internet Explorer are you currently using? Easy to find
out. Open Internet Explorer and while that is in-focus, press and hold
the "ALT" key on your keyboard. With the "ALT" key still pressed, press
(just once, no holding) the "H" key. Now, with the "ALT" key still
pressed, press (just once, no holding) the "A" key. That will bring up
the "About Internet Explorer" window. It will give you the exact version
you are using - repeat what you see there in response to this message.

What AntiVirus application are you using? (Name and exact version, please.)
- Was any flavor of "Norton" products ever installed?
- Was any flavor of "McAfee" products ever installed?

Do you have a third party firewall - or are you using the built-in Windows
XP firewall?

Do you ever run any antimalware applications? If so - which ones and when
did you scan with them last (full scan, not quick)?

Since I do not know your Operating System (OS) yet...

Reboot so you start with a fresh machine. For everything here you will
need to logon as an user with administrative (installation) priviledges.

Download/install the "Windows Installer CleanUp Utility":
http://support.microsoft.com/kb/290301

After installing, do the following:

Start button --> RUN
(no "RUN"? Press the "Windows Key" + R on your keyboard)
--> type in:
"%ProgramFiles%\Windows Installer Clean Up\msizap.exe" g!
--> Click OK.
(The quotation marks and percentage signs and spacing should be exact.)

It will flash by *quick*, don't expect much out of this step to get
excited about. But the cleaner your machine is to start with, the
better your luck will be later (not really luck - more like preparedness,
but that's not as fun to think about, eh?)

Yeah - you will get tired of rebooting - but let's soldier on and reboot
again and logon as an user with administrative priviledges.

This time (and this is one of the more time-consuming steps) you will be
running (one at a time with a reboot in-between) three different
anti-spyware/anti-malware applications to ensure you come up clean.

Download, install, run, update and perform a full scan with the following
(freeware version):

SuperAntiSpyware
http://www.superantispyware.com/

Reboot and logon as administrative user.

Download, install, run, update and perform a full scan with the following
(freeware version):

MalwareBytes
http://www.malwarebytes.com/

Reboot and logon as administrative user.

Download and run the MSRT manually:
http://www.microsoft.com/security/ma...e/default.mspx

You may find nothing, you may find only cookies, you may think it is a
waste of time - but if you do all this and report back here with what you
do/don't find as you are doing all of it - you are adding more pieces to
the puzzle and the entire picture just may become clearer and your
problem resolved.

Reboot and logon as administrative user.

At this point - if the machine was mine - I would follow these directions:
http://social.answers.microsoft.com/...b-1ef8b771dff8

In other words... Use the .NET Cleanup Tool (Method 2), reboot and install
the .NET Updates in this order:

- .Net Framework 3.5
(http://www.microsoft.com/downloads/d...1-508D977D32A6)
- .Net Framework 1.1
(http://www.microsoft.com/downloads/d...D1E7CF3A3&)
- .Net Framework 1.1 SP1
(http://www.microsoft.com/downloads/d...353618B38&)

Should be good to go.

Needs repeating in full?
When installing updates using Windows update or Microsoft Update you may
receive Error 0x643 or 0x80070643 (23 Oct-09)
http://support.microsoft.com/kb/976982

=====================

Step #1 => Before doing anything else, write down what .NET Framework
versions are currently installed:

How to determine which versions of the .NET Framework are installed and
whether service packs have been applied
http://support.microsoft.com/kb/318785

Step #2 => Now see Resolution Method 2 in this related KB article...

When you try to install an update for the .NET Framework 1.0, 1.1, 2.0, 3.0,
or 3.5, you may receive Windows Update error code "0x643" or Windows
Installer error code "1603" (ignore the title, if need be)
http://support.microsoft.com/kb/923100

After running the .NET Framework Cleanup Tool, reinstall all .NET Framework
versions (but only the ones you wrote down in #1 above) manually using the
download links on the page then run Windows Update manually to install
security updates for same.

NB: If you remove .NET Framework 3.5 (SP1) using the tool, reinstalling .NET
Framework 3.5 will also install .Net Framework 2.0 SP2 and 3.0 SP2; then
Windows Update will offer .NET Framework 3.5 SP1.

IMPORTANT! => If you remove .NET Framework 3.5 (SP1), reinstall your .NET
Framework versions in the following order:

1. .Net Framework 3.5, then...
2. .Net Framework 1.1, then...
3. .Net Framework 1.1 SP1

NB: KB923100 references this page:
http://blogs.msdn.com/astebner/archi...30/611355.aspx. Please read
ALL of it as well as the related page
http://blogs.msdn.com/astebner/pages/8904493.aspx before using the .NET
Framework Cleanup Tool.

Come back - let everyone know if this fixed the problem you were having with
your system.

Sure - another one that thinks that switching platforms (in any direction)
will resolve all their problems. Please - do switch. Sometimes it works
out for the switcher, most of the time it just presents itself in the form
of new problems with fewer friendlier resources than previously to turn to
and more money spent/more time spent. It doesn't matter if you started at
the macintosh and are deciding to switch to windows or started at linux and
are deciding to switch to windows or started with windows and decided to
switch to macintosh - usually the change is worse than the solution to
*your* problem would be. ( There in-lies the actual issue - seldom does
anyone come to the conclusion that the problem is with their
system/something wrong there and not some overall conspiracy of the
OS/software companies to keep them from working/playing as they want to.
;-) )

So here you are - and in your rant you only really gave two bits of
information (accidentally I would say) which are in the subject line (error
80070490) and the fact that you have Vista (sort of mentioned 'in passing').

Based off that - not much to do but give it a shot. So - let's go through
your problem *if* you are wanting to fix it.

You should get the edition and version information...

Start button --> RUN
(no "RUN"? Press the "Windows Key" + R on your keyboard)
--> type in:
winver
--> Click OK.

The picture at the top of the window that opens will give you the general
(Operating System name and edition) while the line starting with the word
"version" will give you the rest of the story. Post _both_ in response
to this message verbatim. No paraphrasing - instead - ensure
character-for-character copying. That's the edition (in the top picture)
and the exact version number in detail (the 'version' line.)

What version of Internet Explorer are you currently using? Easy to find
out. Open Internet Explorer and while that is in-focus, press and hold
the "ALT" key on your keyboard. With the "ALT" key still pressed, press
(just once, no holding) the "H" key. Now, with the "ALT" key still
pressed, press (just once, no holding) the "A" key. That will bring up
the "About Internet Explorer" window. It will give you the exact version
you are using - repeat what you see there in response to this message.

How to determine whether a computer is running a 32-bit version or
64-bit version of the Windows operating system
http://support.microsoft.com/kb/827218

What AntiVirus application are you using? (Name and exact version, please.)
- Was any flavor of "Norton" products ever installed?
- Was any flavor of "McAfee" products ever installed?

Do you have a third party firewall - or are you using the built-in Windows
firewall?

Do you ever run any antimalware applications? If so - which ones and when
did you scan with them last (full scan, not quick)?

Some stuff you can do... In order (may seem like quite a bit, but you let
the
machine get into quite a state, this should clean it up.)

Reboot so you start with a fresh machine. For everything here you will
need to logon as an user with administrative (installation) priviledges.

Download/install the "Windows Installer CleanUp Utility":
http://support.microsoft.com/kb/290301

After installing, do the following:

Start button --> RUN
(no "RUN"? Press the "Windows Key" + R on your keyboard)
--> type in:
"%ProgramFiles%\Windows Installer Clean Up\msizap.exe" g!
--> Click OK.
(The quotation marks and percentage signs and spacing should be exact.)

It will flash by *quick*, don't expect much out of this step to get
excited about. But the cleaner your machine is to start with, the
better your luck will be later (not really luck - more like preparedness,
but that's not as fun to think about, eh?)

Yeah - you will get tired of rebooting - but let's soldier on and reboot
again and logon as an user with administrative priviledges.

This time (and this is one of the more time-consuming steps) you will be
running (one at a time with a reboot in-between) three different
anti-spyware/anti-malware applications to ensure you come up clean.

Download, install, run, update and perform a full scan with the following
(freeware version):

SuperAntiSpyware
http://www.superantispyware.com/

Reboot and logon as administrative user.

Download, install, run, update and perform a full scan with the following
(freeware version):

MalwareBytes
http://www.malwarebytes.com/

Reboot and logon as administrative user.

Download and run the MSRT manually:
http://www.microsoft.com/security/ma...e/default.mspx

You may find nothing, you may find only cookies, you may think it is a
waste of time - but if you do all this and report back here with what you
do/don't find as you are doing all of it - you are adding more pieces to
the puzzle and the entire picture just may become clearer and your
problem resolved.

Reboot and logon as administrative user.

At this point - if the machine was mine - I would follow these directions:
http://social.answers.microsoft.com/...b-1ef8b771dff8

In other words... Use the .NET Cleanup Tool (Method 2), reboot and install
the .NET Updates in this order:

- .Net Framework 3.5
(http://www.microsoft.com/downloads/d...1-508D977D32A6)
- .Net Framework 1.1
(http://www.microsoft.com/downloads/d...D1E7CF3A3&)
- .Net Framework 1.1 SP1
(http://www.microsoft.com/downloads/d...353618B38&)

Needs repeating in full?
When installing updates using Windows update or Microsoft Update you may
receive Error 0x643 or 0x80070643 (23 Oct-09)
http://support.microsoft.com/kb/976982

=====================

Step #1 => Before doing anything else, write down what .NET Framework
versions are currently installed:

How to determine which versions of the .NET Framework are installed and
whether service packs have been applied
http://support.microsoft.com/kb/318785

Step #2 => Now see Resolution Method 2 in this related KB article...

When you try to install an update for the .NET Framework 1.0, 1.1, 2.0, 3.0,
or 3.5, you may receive Windows Update error code "0x643" or Windows
Installer error code "1603" (ignore the title, if need be)
http://support.microsoft.com/kb/923100

After running the .NET Framework Cleanup Tool, reinstall all .NET Framework
versions (but only the ones you wrote down in #1 above) manually using the
download links on the page then run Windows Update manually to install
security updates for same.

NB: If you remove .NET Framework 3.5 (SP1) using the tool, reinstalling .NET
Framework 3.5 will also install .Net Framework 2.0 SP2 and 3.0 SP2; then
Windows Update will offer .NET Framework 3.5 SP1.

IMPORTANT! => If you remove .NET Framework 3.5 (SP1), reinstall your .NET
Framework versions in the following order:

1. .Net Framework 3.5, then...
2. .Net Framework 1.1, then...
3. .Net Framework 1.1 SP1

NB: KB923100 references this page:
http://blogs.msdn.com/astebner/archi...30/611355.aspx. Please read
ALL of it as well as the related page
http://blogs.msdn.com/astebner/pages/8904493.aspx before using the .NET
Framework Cleanup Tool.

I would then check the hard drive(s) for errors and straighten things up...

Windows Vista CHKDSK:
http://www.windows-help-central.com/...ta-chkdsk.html

Windows Vista Defragmentation:
http://windows.microsoft.com/en-us/w...your-hard-disk

Now - before checking for more updates - I would do something else, but you
have not yet provided your operating system details. So...

32-bit Windows Vista ______ Edition with No SP or Service Pack 1 or 2

How do I reset Windows Update components?
http://support.microsoft.com/kb/971058

.... and click on the "Microsoft Fix it" icon. When asked, select "RUN",
both times. Check the "I agree" box and click on "Next". Check the box
for "Run aggressive options (not recommended)" and click "Next". Let
it finish up and follow the prompts until it is done. Close/exit and
reboot and logon as administrative user.

64-bit Windows Vista ______ Edition with No SP or Service Pack 1 or 2

Download, install and run...

System Update Readiness Tool for x64-based Systems
http://www.microsoft.com/downloads/d...f-0feefc7ff064

Reboot and logon as administrative user.

Now - after all that - try your updates again.

Come back and let everyone know if it worked out for you or at least provide
the requested information so someone might be able to help you further.

Now you might say that you have tried all of this before - but was it all at
once and all in the order given? If not - please - follow the directions as
given all at once ignoring whether or not you think/know you have done one
step before and/or you think you have done an equivalent step.

Worst case - after you do all this - you will still have a problem but a
much cleaner system and will have provided those here with something they
can work with instead of just waiting on someone else to fix the problem
with your system.

No one even knows what your specific problem or specific operating system
is. You have hijacked a 2 month old conversation (at least the part you
responded to - the conversation actually started 3 months ago...) and gave
*no details* even though the very part you responded to gave you
instructions on how to do so.

My suggestion is simple - give some details on *your* issue.

You should get the edition and version information...

Start button --> RUN
(no "RUN"? Press the "Windows Key" + R on your keyboard)
--> type in:
winver
--> Click OK.

The picture at the top of the window that opens will give you the general
(Operating System name and edition) while the line starting with the word
"version" will give you the rest of the story. Post _both_ in response
to this message verbatim. No paraphrasing - instead - ensure
character-for-character copying. That's the edition (in the top picture)
and the exact version number in detail (the 'version' line.)

What version of Internet Explorer are you currently using? Easy to find
out. Open Internet Explorer and while that is in-focus, press and hold
the "ALT" key on your keyboard. With the "ALT" key still pressed, press
(just once, no holding) the "H" key. Now, with the "ALT" key still
pressed, press (just once, no holding) the "A" key. That will bring up
the "About Internet Explorer" window. It will give you the exact version
you are using - repeat what you see there in response to this message.

How to determine whether a computer is running a 32-bit version or
64-bit version of the Windows operating system
http://support.microsoft.com/kb/827218

What AntiVirus application are you using? (Name and exact version, please.)
- Was any flavor of "Norton" products ever installed?
- Was any flavor of "McAfee" products ever installed?

Do you have a third party firewall - or are you using the built-in Windows
firewall?

Do you ever run any antimalware applications? If so - which ones and when
did you scan with them last (full scan, not quick)?

At least then, you are not walking into a mechanics shop and saying, "My
2006 vehicle doesn't run. It makes a clicking noise. How do I fix it?"

Upgrading from one OS to another seldom fixes an issue (unless that upgrade
is truly a clean installation - then the problem *may* go away if the issue
was not hardware related.)

No one here probably ever left you to have to come back to you.

I think I have it all figured out....all the updates you get the 80070490
error, look in your update history...you will see that they have already been
installed , that is why you are getting the error

Did this work in the end?

I have been having trouble with several computers at work with various
versions of .net updates. I spent all day on one user's pc. I had to use
software from a link on Microsoft's site to force some of the version of .net
to uninstall. Then I had to reinstall each .net version, one at a time, and
then install numersous .net updates. This took several reboots.

I think Microsoft should provide a partial refund of the purchase price
since they sold us a defective product, or a good product that they made
defective. If I took my vehicle into the shop, and they accidentally break my
windshield while changing oil, they are liable for windshield repairs.

I can imagine how frustrating, or impossible, for most people to have to
deal with this. I would assume that there are millions of computers out in
the world that will never ever get updated because of this fatal flaw. Some
of the other important updates won't install until this flawed uninstallable
update is successfully installed.

For the many affected that are scouring the Net for a solution to this
problem there is hope! After much digging I found the "System Update
Readiness Tool for Windows" (REF:
http://support.microsoft.com/kb/947821/en-us). After installing this tool /
update on a Vista SP1 x86 installation I was able to download the > 90
updates available. Please note that the fix took some time to complete and I
rebooted the affected machine before downloading and installing the delta
updates.

Not everyone has the .NET Framework issue. I don't have it nor have any of
the machines I manage had it. Something changed some things on the
computers in question and if it was something from Microsoft that everyone
would get then why isn't everyone in the same boat?

I have had to help people fix this - but in the end - it isn't an 'across
the board' issue. I even freshly installed a computer the other day
(starting with Windows XP Home Edition with SP3) and patched it using the
windowsupdate web page with over 125 post-SP3 patches in large batches just
to see if I could recreate the issues people have with doing the updates
(not just these, mind you - others as well.) It patched with everything no
problem and is running strong.

So - while I feel your pain - it is your pain. Something changed on the
machine in question (agreed) - but I think you are throwing the bame around
just to feel better about doing what is obviously part of your job (IT
support). Microsoft did not force .NET Framework 2.x/3.x/4.x on you/your
computers nor did they decide what else was to be installed on the computers
or in what order or who used it or the other configuration settings, etc.

Your example assumes the employees of the 'the shop' broke your window while
changing your oil in the standard manner and no vehicle changes were made
they were unaware of and no third party entity was involved. If some third
party came by and shot up the shop for whatever reason - the shop is not
liable for your broken window. If a freak storm blew limbs around while
your car was there and a linb crashed into your window - not the shops
fault. If you modified your car with some third party parts and did not
notify the shop of the changes (or just did not think it should matter) and
the new pressure of the type of oil you chose made some part shoot off and
the part landed miraculously on your windshield and broke it - not the shops
responsibility. Your example isn't bad - but it is incomplete. ;-)