I recently lost connection to my pc running Plex, turns out Windows made the decision to upgrade to 10 for me. It stopped halfway through, 'unable to complete', attemped several times to restore it to Windows 8.1, and failed. I tried a USB recovery disk, and now when I power on my PC, I get the Samsung logo (normal), and a bar accross the bottom that says 'f2 for setup, f4 for recovery', along with a logo that says 'Phoenix'. If I press buttons, it goes into recovery, regardless of which button I push. If I press no buttons, it goes into recovery. I had the recovery app (which appears to not be a Microsoft product, but I have no way to find out, there's no help or about) reinstall Windows 8, but alas, it continues to do the same loop and put me back into recovery (this happens even if I remove the USB disk and turn the PC on). I've also unplugged everything and left the CMOS battery out for a couple of hours, same issue. I'm at a total loss here. I can SEE files in the recovery app, so I know the hard drive isn't toast, but...how the heck do I get into my BIOS or into Windows? I BELIEVE the issue could be a setting in the BIOS, I did try a trick that a forum mentioned, which was to set the boot away from UEFI, but now I can't get back to change it.