windows installer wont install C++ for some reason

I tried installing C++ because Unreal engine requires it and i really wanted to play a game my friend gifted me but it gives me the error windows installer Cannot access it or whatever im on a 64 bit Lenovo with a Windows operating system and i think its a faulty windows install although i did some deep scans using command prompt and nothing works if any of you guys have a solution pls tell me im really desperate at this point