Save the below 4 lines as "VsRestore.bat":
this batch file should be run from a Visual Studio Command Prompt. It will reset
all your Visual Studio settings, perform a new setup (what happens when you first
run Visual Studio after installation is done), reset all add-ins, and reinstall
If you still have problems with Visual Studio after running the above script, you have a different kind of issue
and should probably do a Repair (Reinstall) of Visual Studio.