There's no need to have Win 10, by the way. I run UrW on Windows Vista Ultimate x64 (I'm probably one of the last users of this system), have required library installed by something else (I've got 500 programs, so don't know exactly what installed this), and everything works splendidly. I suppose some of newer patches broke dependencies somehow, it wouldn't be a first time.
Generally, it is usually fixed by installing vcredist_x64.exe or vcredist_x86.exe, whatever applicable, which in turn is performed by almost any Windows game when installing (if you have Steam and install a lot of games it is happening all the time). It is possible to uninstall the VC redistributable, just run the exe manually and select Uninstall.