Problems re-installing SQL Server 2008

Question

I had SQL Server 2008 Standard installed and running on my Vista 64bit machine. I upgraded to Windows 7 today. It informed my that SQL Server 2008 had compatibility issues and to uninstall it and reinstall after windows 7 installed. I did that and now I get this error when I try and reinstall SQL Server.

VSShellInstalledRule

Checks for previous releases of Microsoft Visual Studio 2008

Failed

A previous release of Microsoft Visual Studio 2008 is installed on this computer. Upgrade Microsoft Visual Studio 2008 to the SP1 before installing SQL Server 2008.

I cannot get past this message and I my VS 2008 is

Microsoft Visual Studio 2008
Version 9.0.30729.1 SP
Microsoft .NET Framework
Version 3.5 SP1

Running Windows update says my machine has no updates to install.

Answer 1

Your problem and solution for it has been explained in this blog entry ...
http://blogs.msdn.com/guil/archive/2008/12/14/sql-server-2008-installation-dependency-problems-with-visual-studio-2008-sp1.aspx .

This is primarily due to setup process was looking for ServicePack information on the WoW64 registry key, that was outdated..

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Thanks, Leks