Why does my pc only show a black screen with a blue circle cursor when I turn it on?

[Microsoft Windows]

My pc was working fine until randomly the screen froze, I turned it off by holding the power button on the pc. The next time I turned it on I was stuck on a black screen with a spinning blue circle cursor. I have seen solutions such as CTRL+WIN+SHIFT+B and WIN+P but these change nothing and it is still stuck on a black screen. I don't know what to do or what happened. Can you help please?

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