windows vista update installation failed

I have windows vista home premium...Security Update for Microsoft. NET
Framework, Version 1.1 Service Pack (KB929729)will download, but not
install....Rec'ved error codes 80246005 and 643.........help!! It downloads
over and over for months.....any connection to AOL or Trend Pc-Cillin?...I'm
technically challenged, so please reply in step by step solution, if you have
one...thanks.

The first question I would ask is WHY are you trying to install a
Service Park for something so old? Net Framework is up to version 3.0.
So unless you have some specific application that demands it must have
version 1.1 you shouldn't have it on your system.

Download Microsoft Windows Installer CleanUp utility
http://download.microsoft.com/downlo...BD/msicuu2.exe

Remove .NET Framework with Windows Installer Clean Up.

download the Microsoft .NET Framework Version 2.0

Microsoft .NET Framework Version 2.0 Redistributable Package (x86):
http://www.microsoft.com/downloads/d...DisplayLang=en

Security Update for Microsoft .NET Framework, Version 2.0 (KB917283)
http://www.download.windowsupdate.co...aaa58b8644.exe

Security Update for Microsoft .NET Framework, Version 2.0 (KB922770)
http://download.microsoft.com/downlo...922770-X86.exe

Security Update for Microsoft .NET Framework, Version 2.0 (KB928365)
http://au.download.windowsupdate.com...879819fb45.exe

According to Microsoft, there is a prerequisite to installing KB929729.
You have to install MS Windows Installer 3.1 first. Here is the entrie
article, look under More Information, prerequisites.

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#gsfx_brnd_NetworkHeaderLinks { color: #ffffff; }
#gsfx_brnd_SiteHeader, #gsfx_brnd_PageLogoWrapper, #gsfx_brnd_PageTitle
{ color: #ffffff; } #gsfx_brnd_SiteFooter,
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#gsfx_brnd_NetworkFooter, #gsfx_brnd_FooterLinkContainerm,
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I don't even know what a service pack is.....But i see in my Windows Update
History that Windows has automatically downloaded and installed updates for
..NET Framework 3.0....would this mean I could ignore downloading the Version
1.1 update and function properly?

Windows update history shows successful update download and installation to
..NET Framework 3.0......Does this mean I already have the latest version and
can ignore the 1.1 update that won't install? I have no idea what a service
pack is...please bear with my ignorance on this subject...thanks

Yes. If you needed the older version, you would probably get that message
when you ran some application

my windows update keeps sending me updates for my vista home
premium....servic pack 2 and now sp3....both "important" Neither one
installs. M-soft tells me to hide the updates.
I think they should install.

Are you sure it's not referring to another OS, such as Win XP. Did you do an
upgrade from Win XP or a clean install with Vista Premium. Vista doesn't
have an SP2 or SP3. If it's for Win XP I certainly would hide it. But read
the details of the update anyway.

I had the same problem as Jemima - carried out the clean up, but now, when I
try to reinstall the .NET Framework passage, the installation fails with the
error that it is already installed as part of the OS installation.
I think I just caught site of the back of my head!
Any ideas?????