We have installed Visual Studio 2015 Professional on Windows 7. It was working fine. But after we installed updates from the menu Tools-->\'Extensions and Updates\' today the Vi
I tried several methods above and even re-installed VS but it did not work. The final solution was to really completely remove all the settings and registries of VS with the tool VisualStudioUninstaller. After uninstalling and re-installing it, it is up again.
I had the same problem recently after I upgraded one of the packages. I tried "everything" and the only option that worked was the /Setup switch (I was logged in as Administrator, but don't think that's required).
c:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE>devenv.exe /Setup
c:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE>devenv.exe
https://msdn.microsoft.com/en-us/library/ex6a2fad.aspx
If nothing above works (like in my case) then open a registry editor, go to HKEY_CURRENT_USER\Software\Microsoft\VisualStudio
and delete all 14.0 directories.
It will reset all VS settings and next launch will be like first one after installation. Found answer here