ViperPB if you already optimized windows and undervolted you only solution its to repaste it with kryonaut or similar if you can yourself without voiding your warranty also bare in mind games like fortnite, pubg,rust rent properly optimized and especially the new cod in some devices its creating issues so they arent the best games to test your temps you should try your temps in an proper optimized game as for ex shadow of the tomb raider etc.... and your gpu should never exceed 75'ish 80 its already pushing and yes as you stated the fraud avg its completely useless if you want a good antivirus (you shouldnt need it depending of what youre doing windows defender should be enough) get nod 32 antivirus been using it for years never had any issues combined with superantispyware i come from norton when in the beginning it came out it was good but a few years after also became rubbish too much useless stuff added to it