C++ Project Compilationr Error , missing mspdb120.dll

I unsinstalled everything, then reinstalled vscommunity but it still didnt work, so I uninstalled it again, and tried to install again VS for windows desktop but still nothing…

I start wondering if I should not installe Win7 again ^^ Just one question, if I do so, do I loose everything that’s stored in my computer ? If yes, even if it’s not on the local disk ?

If you have other solutions I’m all ears, I really like programming and would like to learn how to create games =)