Windows Installer Problem

[Desperate For Help]

I get this messsage when trying to install:

Windows Installer Installation Wrapper
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
currently installed. Contact your support personnel for assistance.

The Long Story:

It started when I was installing an applicaiion and got an error saying a
file could not be found. I would get this error when booting up the computer
and everything ran slow.

I tried installing a cleanup uility but it could not install because windows
installer was busy installing something else. This was the case installing
anything.

I ran services.msc and shut off windows installer. This elimintaed the
error message at boot up but I still could not install anything. THis is
when I started getting the message at the top of this posting.

I tried turning Install to manual and to automatic using services.msc but
nothing seems to work. I have used disc cleanup and defragmenter to no avail.

I can't install updates or any programs.

HELP PLEASE

 

[Andrew E.]

Download installer v3.1 to desktop,go to run,type:msiexec /unregister
Then type:msiexec /regserver After,install 3.1,reset installer in
services.msc