I recently built a computer and I believe that I downloaded a virus on accident. Whenever I click on something it sends me to a link where it says I need to contact Microsoft and blah blah blah. It is a tech support scam. Anyways when I tried to reset my pc and nothing would happen when I tried to reset it I believe that is because of a virus. So I went to my bios and put it in the windows 10 usb stick and reset my pc. But it said that windows could not remove all my personal files...what does that mean??? Is the virus too strong?