ok yes i know i have a reputation as a "child" on this site but i have a problem with my other comp and i was wondering if theres any techies out there who may have a suggestion.

ok so everytime i boot the comp it brings me to a screen saying its trying to boot and then it runs diagnostics on the comp and restarts it, i left it running one time and it just kept doing that over and over. i think my comp is phucked but im not sure so can you please help me even though i am a "child/kid?"
I am sorry I am annoying.