My pc keeps repairing my C drive every time I boot it up, how do I fix it?

[Microsoft Windows]

Every time I start up my pc it will always show me the "repairing c drive" screen, eventually I'll just get in to the pc and no problem, shut off for the day next day repeat, its been going on for over a month now, the problem is this has been really going on for 2 years, over the years it got to the point I just couldn't even start up my pc. I had to reinstall windows about 3 times in total, so far each time it works fine until a few months in then it starts to show "c drive repairing itself diagnosing your pc" and finally today low and behold it finally also couldn't start up again properly.

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