Hello guys, so basically a technician came over to my house, he tried to fix my computer, he check the wires, the ram the voltage and for virus and nothing still, he told me it was just that i needed to install bios and thats it. so now guys it worked fine yesterday and today it starts going bad again. can anybody tell me what to do next? maybe i didnt update something else apart from bios? or there may be a program i can run to tell me why my pc freezes? anything please!!!!!