Try running Windows Update before trying to install the Microsoft Visual C++ 2015 Runtime and see if that helps. Also, check your system settings and verify whether your version of Windows is 64 bit or 32 bit (x86), and run the run the proper Visual C++ installer.
I have been doing that, and when I was doing it, the same two updates would always pop up after I try to install runtime. The updates said "no updates left to install" and that those 2 updates always installed correctly but I would always have the same problem, followed by he two updates popping up again. I have checked for updates since then and found more so hopefully it works soon. I am running the 64 bit version of windows 8.1 off a dual boot mac, that I just got set up so it need some a lot of updates