i have been playing for a while on my PC. i have 2 accounts. 1 for me and 1 for my sister. after a while when i was playing and i finished. the next day i turned my pc on and it was very very laggy. games, videos even just normal tasks were very slow. and my specs are just below gaming pc. then once i unplugged my internet cable and it was extremely fast. no game lagged. so i was thinking. "is it only my account?" so i got on to my sisters and it was fine. internet and no lag at all. now i know what your gonna say. "play on ur sisters acc u faggoot" but my account is the main one. and i can do some things there that i cant do on my sisters account. so i need help. is my account infected with a virus? or is it laggy? i dont know. and i already checked up with windows defender and a few other anti viruses.and another side note: i downloaded a 22 gig game from the interwebs. and that wasn't a virus. i have my anti viruses on all the time. help would be appreciated.