My Visual Studio 2010 was working fine this morning (I run in in XP sP3 under Paralles) I restarted the entire laptop and I started getting this error. I even uninstalled VS
Do you see anything in the application event log?
Try these
devenv /ResetSettings devenv /installvstemplates
Delete contents in here:
%ProgramFiles%\Microsoft Visual Studio 10.0\Common7\IDE\ProjectTemplatesCache