How to associate .uproject files in ue4

Hi today I tried opening a new project in launcher. In that new project visual studio files automatically generated. But if I right click .uproject file in new project still I’m not getting generate visual studio files and switch unreal version engine options not showing. One more thing I forgot to tell you that everytime I open a launcher it is displaying a msg as " Some of uproject files are not associated would you like to fix them". Each and every time I’m pressing option fix now still the .uproject files are not associated. What might be problem ??

Thanks&Regards
Programmer