If it's registry corruption, then running a System Restore back to a point
prior to the problem may sort it.

--
Jon


"MPK" <MPK@discussions.microsoft.com> wrote in message
news:494F1C72-7BF6-460F-9B96-C4FE166BCA60@microsoft.com...[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]