So my Windows 8.1 Installation went corrupt after an update for no good reason. I tried reinstalling it via a built in recovery installation, but at the very last step, it failed. Now I'm stuck with error message 0x0000225. My laptop is an HP Envy TouchSmart 15. I can boot off of an Ubuntu Linux 15.04 flash drive to use the computer itself for troubleshooting, but cannot boot off of a Windows 8.1 installation flash. What to do? I've been ripping my hair out over this lol.