Question Asus laptop keeps restarting

Jan 6, 2020
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I bought a used Asus laptop off Facebook marketplace (it was cheap), I'm not sure what's wrong with it but every time I open too many programs it restarts, and when I move the screen/pick it up (which shakes the screen a bit) it restarts, I'm not a computer "geek" so to say, so I'm not sure.

(I do know a bit about computers though, I'm not a boomer)