If you have been beta testing Microsoft .NET Framework 4.0 Beta 1, we recommend you install a fresh copy of Windows 7 on your machine. Alternatively, you may also choose to uninstall Visual Studio 2010 Beta 1 and .NET 4.0 Beta 1 prior to upgrading to Win7.
Customers have commented that whenever they try to install other products or patches they continually see the following message,
Another installation is in progress. You must complete that installation before continuing this one.
Customers may also see instances of msiexec.exe or msiexec.exe*32 appear continuously in Task Manager or other process monitoring software.
Microsoft Visual Studio 2010 Beta 1 customers have been reporting that when they start Outlook or any of the Office applications, VS2010 is repaired. This issue can also happen for VS2005 and VS2008, and for any products using Visual Basic for Applications (VBA).