Heyas! I seem to be having some trouble performing an upgrade from Windows 8.1 Pro to Windows 10. It has been stuck at 25% complete and 84% Copying files for more than three hours now. It happened previously and I hard rebooted after a hour waiting at the same percent, and after it reverted back, I continued to make sure the files aren't corrupt, and they seem to be fine. Specs: i7 4770K NVidia GTX 770 ASUS Z97 Sabertooth MARK II 16GB DDR3 1800MHz RAM Samsung 840 Pro SSD I did a quick browse and search and didn't find the exact same issue, so I figured it'd be easier to ask since I'm searching from the tablet currently whilst I wait for it.