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.