Hvis du måske har rod i Windows Installer oplysningerne så brug dette program til at rydde op med
WINDOWS INSTALLER CLEAN UP UTILITY
http://support.microsoft.com/kb/290301WHAT IS THE WINDOWS INSTALLER CLEAN UP UTILITY?
The Windows Installer Clean Up Utility is a tool that can be used to remove Windows Installer configuration management information if a problem occurs.
*** NOTE: The Windows Installer Clean Up Utility should not be used to remove the 2007 Microsoft Office System installation information. ***
The Windows Installer configuration management information can become damaged if any of the following issues occur:
- The computer's registry becomes corrupted.
- A registry setting that is used by the Windows Installer is
inadvertently changed, and this change results in a problem.
- The installation of a program that uses Windows Installer (for
example, Microsoft Office 2003) is interrupted.
- There are multiple instances of a setup program running at the same time, or
an instance of a setup program is "blocked."