Starting a couple days ago, my computer has been reaching 100% cpu usage pretty often for seemingly easy to run tasks. Whenever I play a game or download/update an application it reaches 100%. This causes my entire computer to lag. I have run multiple full system scans with norton 360 and have not found any viruses. I did a full computer reset a few days ago to try and fix the issue but the problem did not go away. My cpu is an i5 6500 which I bought and started using about 5 years ago. Does this sound like a virus or do you think my cpu is failing?