Old failed installation process locks machine from install/uninstall

[JP]

I am unable to install any software or uninsall because Windows (Vista
Business 64bit) says to me following when trying to remove or add
software.

[Window Title]
Windows Installer

[Main Instruction]
Another program is being installed. Please wait until that
installation is complete, and then try installing this software again.

[OK]

Also, windows update doesn't work anymore and every time I shutdown
machine it tries to install pending updates from Windows Update but
they do not install.

I have tried to look Windows Processes but there is no installation
process there, I cannot find any running installations. Is there some
register settings that prevents further installation?

Any advice highly appreciated.

 

[Rick Rogers]

Hi,

Start with the installation cleanup utility:
http://support.microsoft.com/kb/290301

--
Best of Luck,

Rick Rogers, aka "Nutcase" - Microsoft MVP

Windows help - www.rickrogers.org
My thoughts http://rick-mvp.blogspot.com

 

[Malke]

I am unable to install any software or uninsall because Windows (Vista
Business 64bit) says to me following when trying to remove or add
software.

[Main Instruction]
Another program is being installed. Please wait until that
installation is complete, and then try installing this software again.

Also, windows update doesn't work anymore and every time I shutdown
machine it tries to install pending updates from Windows Update but
they do not install.

Try the Windows Installer Cleanup Utility:
http://support.microsoft.com/default.aspx?scid=kb;en-us;290301

Malke