Dell Inspiron 530 blue screen of death right after startup (desktop)

I turned on my Dell Inspiron 530 Desktop computer and it was running perfectly normal then it came to the login screen, I logged in to my account. After everything loaded and it showed my desktop and programs the computer blue screened, then shut off. It restarted all the way to the login screen, so I logged in and the same thing happened. Does anyone know what might be wrong with my desktop, is it a virus maybe?
 
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