Visual Studio toolbox items not showing

01 - Close Visual Studio

02 - Search *.tbd inside “C:\Documents and Settings\[UserName]\Local Settings\Application Data\Microsoft\VisualStudio” & delete them

VS2010 version differences

Remove Items from the Recent Projects List on the Start Page

http://msdn.microsoft.com/en-us/library/aa991991(VS.80).aspx

Removing items using the registry

To be much more efficient, you can run regedit and remove the items stored in:

HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\8.0\ProjectMRUList

Bear in mind that if you only want to remove a subset of items, you'll have to reorganize the list to maintain the proper sequence (no numbers skipped).