It can happen that a installation in Windows fails. Reasons for it failing can be numerous from mundane reasons like running out of hard disk space to more serious ones that include Registry corruption or crashes. One problem that can arise from a failed software installation are installation leftovers that can not only impact disk size but also stability and performance of the computer system.
The Windows Installer CleanUp Utility has been developed by Microsoft as a tool to clean a computer system after a failed installation of a software program using the Windows installer. The computer program will display a list of all applications that have been installed using Windows Installer giving the user the option to remove their installers properly from the computer system.

It is possible to select one or multiple programs from the list for removal. The cleanup program will then remove the installation files from the computer system so that it can be removed or installed properly. Microsoft advises to not use the program to cleanup Office 2007 installers this way. The reason for this is that it can happen that installers can become corrupted so that it becomes impossible to remove the program from the operating system.
The Windows Installer CleanUp Utility is compatible (via 4 Sysops) with 32-bit and 64-bit editions of the Windows operating system.
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this is kinda off-topic, but have you feature some sort of “Windows Update Cleaner” which works like this program ?
I think i saw it once at here, but couldn’t find it again by using search box…so
i will appreciate if somebody tell me proper link…
sorry for off-topic
Crap Cleaner can probably do this? http://www.ccleaner.com/update/
@ turu
You can try Windows XP Update Remover here > http://www.tech-pro.net/windows-update-remover.html
hey dummy wheres the download link?
Does CCleaner do the same?
Hej Dummy its there.
Speaking of freeing up space, Fred Langa wrote about how “Huge WinSxS folders gobbles up disk space” in Windows Secrets. I wrote back that:
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WinSxS is nothing! On my system it is only about 52MB.
The REAL problem for me is C:\Windows\Installer. As you can see from the data below, this folder is 2.22GB! It takes up fully 20% of my entire (partitioned) C: drive, which is 10MB.
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But I never received any reply from Fred nor Windows Secrets nor saw any write-up on this folder in their newsletter.
I had tried to delete this folder but that royally corrupted Windows and I had to restore the C: drive to recover.
Does anyone know how to reduce the size of this C:\Windows\Installer folder?
Thank you, Martin and Mark. I’ll try both.