I recently got a horrible virus all I can do is login to my PC but once I'm in it's a black screen with a popup asking for a licence key that I can't even type in when I try to. So all I can do is try to reset it but for some reason there is no option to do so in the boot menu I also added a Windows 10 ISO file and it won't recognize the boot device! I've changed my hard drive to 3 different ones and the virus still persists!! Please help