Is there an error message associated with the failed install of the
Update Rollup ? Who runs System Restore - is the update doing it after
failing to install ?

Try this - Show hidden files, folders, and system files :
http://snipurl.com/f4cx

Create a temporary folder on the Desktop. Name it Temp. Navigate to the
WINDOWS\Installer folder. Move all the contents of that folder to the
newly created Temp folder on the Desktop. Now try to install the Update
Rollup.
Whether it succeeds or not, move all of the contents of Temp back to
WINDOWS\Installer afterwards.
Did that allow it to install ?

MowGreen [MVP 2003-2006]
===============
*-343-* FDNY
Never Forgotten
===============


Wytse Talsma wrote:

> I have removed the KB886904 fix and re-installed the .net framework 1.1 SP1.
> The rollup couldn't install.
> I've tried to download the rollup 2 manually from microsoft.com and tried to
> install also manually, but he failed. Then he runs system restore.
> The last message I saw in MCE was that he was installing:
> Hotfix voor Windows XP (KB895961)
>
> Then he sayd he failed and had to restore.
>
>
>
> "MowGreen [MVP]" wrote:
>
>
>>Wytse,
>>
>> From http://support.microsoft.com/kb/900325 :
>>
>>" Note To install this update, you **must have Microsoft .NET Framework
>>1.1 and .NET Framework 1.1 SP1** installed. Windows Update detects
>>whether these packages are installed. Windows Update automatically
>>installs these packages for you.
>>
>>If the 886904 update is installed, you **must uninstall the 886904
>>update** before you install Update Rollup 2 for Microsoft Windows XP
>>Media Center Edition 2005. Otherwise, the .NET Framework 1.1 SP1
>>installation will not succeed. "
>>
>>Does that clear things up ?
>>
>>MowGreen [MVP 2003-2006]
>>===============
>> *-343-* FDNY
>>Never Forgotten
>>===============
>>
>>
>>Wytse Talsma wrote:
>>
>>
>>>When I try to install this update for Windows Media Center 2005 the setup
>>>fails, even when I've downloaded it manually. Removing .net framework 1.1 or
>>>components wont help.
>>>Foutcode: 0x643
>>>(errorcode)
>>>What's wrong?
>>