Seems to be an issue with most people (and me) It happened to me when I updated windows. My PSU is working fine. This only occurs when I'm away from my pc for a while thoughEvery 2 days or so, my computer randomly turns off and turns itself back on again. Anyone had this issue or know how to fix it?
Is your PSU old? it could be failling, or it can not provide enough power to your compoments, this can also crash your PC if its under heavy load.
Ensure the inside also isn't as dusty as the saharah desert, if it gets too hot it can also shut down