That was in VS 2012, after we tried the other answers here ...
Try to remove it from the add / remove programs. Perhaps you still have to clean up after that in Regedit ... as an example, I deleted HGSCC after it was deleted by searching the registry for "hgscc". Some of the places where I found it ... HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\11.0_Config\InstalledProducts\ HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\11.0_Config\Packages HKEY_CURRENT_USER\Software\...
as well as the guid clsid section. Visual Studio stopped complaining about this after I deleted all the registry folders in which all this garbage was, the deletion should be deleted. Make sure you have a good look.
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