error code 8007073 window update encountered an unknown error

code 8007073 window update encountered an unknown error

why i can not download or install any update and upgrade now on vista

im have trouble downloading window update i get error
code 8007073 window update encountered an unknown error

and when i try to upgrade my window live i get the same error
hr;0x8007064c

even when i download update and try to install i still get error
failed to install

Error codes almost always have 8 hexadecimal digits.
So I suspect you have left out a character from yours.

There you go. 8 hexadecimal digits (aka nibbles).
For ones which start with 8007 what we can usually do
is take the last four, convert them to a decimal value
and use that to see if there is a message in the OS
which has that number.

So, switching to a Command Prompt window (aka cmd window)
you could enter these two commands to see:

<cmd_output OS="XPsp3">
E:\>set /a c = 0x064c
1612
E:\>net helpmsg %c%

The installation source for this product is not available.
Verify that the source exists and that you can access it.
</cmd_output>

You should be able to find more clues in the various logs
and diagnostics that the install would have created,
by searching for either of these two codes, in all the files
which were changed at the time of the update.

Error code when you use the Windows Update Web site or the Microsoft Update
Web site to install updates: "0x8007064C":
http://support.microsoft.com/kb/958055

1. Stop the Automatic Updates service:

Start > Run > (type in) services.msc > [OK]
Double-click Automatic Updates > Click on Stop
(Stopping the service will take a moment)

2. Delete the contents of the Download folder:

Start > Run > (type in) %windir%\SoftwareDistribution > [OK]
Open the Download folder and delete its contents
Close the window.

3. Start the Automatic Updates service:

Start > Run > (type in) services.msc > [OK]
Double-click Automatic Updates > Click on Start
(Starting the service will take a moment)

yah I also facing the same problem. I have find the Mic answers, I still can
not solved the problem.

"Microsoft .NET Framework 3.5 Service Pack 1 and .NET Framework 3.5 Family
Update (KB951847) x86 "