KB2438651

This article describes steps that you can follow to help troubleshoot problems that may occur when you install, uninstall, or upgrade a program on a Windows-based computer.

The Windows Installer Cleanup utility (MSICUU2.exe) that was previously referred to in this article resolved some installation problems but sometimes caused issues with other programs or components that are installed on the computer. Because of this, the tool has been removed from the Microsoft Download Center.

If you need to uninstall Office version 2003, 2007, or 2010, a new FixIT solution is available in the following Microsoft Knowledge Base article:

290301 How do I uninstall Office 2003, Office 2007, or Office 2010 suites if I cannot uninstall it from Control Panel?

If you need to uninstall Microsoft Security Essentials, see the following Microsoft Knowledge Base article:

2435760 How to manually uninstall Microsoft Security Essentials if you cannot uninstall it by using the Add or Remove Programs item

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