We have been using vs 2010 for years on this machine, (server 2003) and now visual studio just started crashing on startup. there is no way to run it at all, it just crash
Following worked for me
Close all instances of VS
go to [System Drive]:\Users[User Name]\AppData\Roaming\Microsoft\VisualStudio\10.0
delete all the files and folders from the above folder.
and reopen the VS and everything should be back to normal.