Remove sql server 2005 express tools to Install SQL Server 2008

Question

I was trying to install SQL Server 2008 Express edition, and installation wizard was not allowing me to proceed further unless I remove SQL Server 2005 Express tools. I tried removing SQL Server 2005 Express tools from Uninstall Program window, but still the same error continues.

Answer 1

Solution

1. Open Run Menu and type regedit.
2. It will open Registry Editor
3. Now go to following location.

(32Bit) HKEY_LOCAL_MACHINE > Software > Microsoft > Microsoft SQL Server > 90

(64Bit) HKEY_LOCAL_MACHINE > Software > Wow6432Node > Microsoft > Microsoft SQL Server > 90

Remove Registry Key 90.

Now try to install SQL Server 2008 and it would work this time.