Hi,
Have you tried the steps here?
http://support.microsoft.com/kb/315346
Written for XP, but they apply the same in Vista.
--
Best of Luck,
Rick Rogers, aka "Nutcase" - Microsoft MVP
http://mvp.support.microsoft.com/
Windows help -
www.rickrogers.org
My thoughts
http://rick-mvp.blogspot.com
"lbswimmer" <> wrote in message
news:...
>
> Hi, whenever I try to uninstall or install something from my computer
> (specifically itunes)
>
> I get the following error message after it finishes downloading
>
> - "The Windows Installer Service could not be
> accessed. This can occur if you are running Windows in safe mode, or if
> the Windows Installer is not correctly installed. Contact your support
> personnel for assistance."
>
> I've spoken to a microsoft technician, as well as 3 HP technicians, and
> no one seems to know how to fix it. I was wondering if any of you knew
> how to fix it or if you are experiencing the same problems.
>
>
> --
> lbswimmer