So a few months ago I downloaded Windows Defender and Windows Defender offline onto the worst laptop ever (my laptop). I downloaded Windows Defender, and it told me that a virus was detected that could only be fixed by downloading Windows Defender Offline onto a USB. So I downloaded it to my USB and booted to it. Windows Defender Offline detected a "virus" and asked me if the program could remove it, and I said yes. When it removed it, I shut down the PC and rebooted. When I rebooted though, the Blue Screen of Death would come up for a split second after bootup, and the system rebooted. This happens all the time, and now the only way I can access this computer is through Safe Mode. In the past few months, I've been backing up all 100 GB or so of my files onto a cloud storage website. I'm finally done and ready to reset this computer to system default. The problem is, I don't know how to do that on Vista Safe Mode. Can anyone tell me how?