I am looking for a trustworthy program that can delete useless *.msi and *.msp files (typically left doing some aborted installation or dirty uninstaller) in the C:\Windows\Installer folder. I use Windows 7 SP1 x64 Ultimate.

There used to be Windows Installer CleanUp Utility but its developer, Microsoft, realized it sometimes deleted useful files as well:

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2 Answers 2


I had the same concerns and issues until I stumbled upon Revo Uninstaller. It's a pretty complete product with deep cleaning support.


Try IOBit Uninstaller. It cleans the leftovers after uninstallations. I had used both IOBit Uninstaller and Revo Uninstaller, and I prefer IOBit Uninstaller. Do uninstall using IOBit Uninstaller and perform a powerful scan, this will list the leftovers of the uninstalled app.

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