i use kaspersky antivirus (paid version) to scan and it never can find a virus. I think kaspersky antivirus can't detect and delete the virus i have. The reason i think i have one is because when i am playing a game it says it using 40% of my cpu but the Total cpu is using 90 to 100% of my cpu ( my background cpu usage is 10% to 20% maybe 30% when scanning pc ) and idk if that is normal or not so i did some math, when i am playing a game i looked at my cpu usage and added every and the total is about 70% usage, so idk why it reading 100% 30% is being used somewhere.