Anyone, please?

Is there any way to reinstall Windows Installer? I keep having the same
problem. I need to have UAC turned off in order to make my PC work, otherwise
the following happens:

As soon as it boots up, an installer for Logitech Quickcam comes up and the
progress bar goes 90% up, then the whole process starts again in and endless
loop (all drivers are properly installed and everything works with UAC off).
If I try to start any office application then an installation window comes
up, it takes a while and then it says "Microsoft [Word] is not installed for
current user. Please run Setup". Setup and Office re-installation doesn't
work.

So my guess is it was the Windows Installer Cleanup Utility, which screwed
everything up and now Installer is corrupt. In the meantime, i have installed
Vista SP1 RC1, hoping that it would reinstall Windows Installer, but it still
doesn't work.

Any help highly appreciated


"MPK" wrote:
[color=blue]
> Hi All,
>
> I had a problem installing Photoshop and followed the recommendation to run
> the windows installer cleanup utility. this has screwed up my entire pc,
> corrupted my profile and cost me an entire day to get my pc back into shape.
> However, I still have one major problem. Somehow, Windows Installer no longer
> works under UAC, which causes all sorts of problems. For instance, every time
> I start up an Office 2007 programme, it starts configuring things and then
> tells me "Microsoft [Word] is not installed correctly for the current user.
> Please run Setup". I've tried for many hours to find a solution for this and
> then realised that it all works fine when UAC is turned off. Also, driver
> installations which normally happen automatically go into an endless loop now
> when UAC is turned on, but all is normal when it is turned off.
>
> My conclusion is that after the installer cleanup utility, somehow the
> permissions got messed up for windows installer. I've searched through the
> registry but couldn't find anything unusual. Any help would be greatly
> appreciated.
>[/color]