Can I go into my files if I cannot boot into windows?

[Microsoft Windows]

I downloaded a game, and every time I try to turn my pc on it says automatic repair failed. It does this everytime and I cannot boot into windows. Ive done some reaserch and I think it could be my power supply, windows boot manager, or the game that I downloaded has corrupt files. I've tried every troubleshooting method that I have found and nothing has changed it. If the game files are corrupt, is there a way to go into my files to delete the game being that my windows won't open? And do these seem like things that could be causing my problem? I have a msi click bios 5.

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