I'm upgrading my laptop from Windows 7 Pro to Windows 10. It shut down, got into the installation screen and last I checked it was at 25% before it crashed and now I'm getting an error code 0x000000f and it's saying it doesn't have access to required files or device. If I press F9 for recovery options it makes the screen refresh, and then if I hit enter after that it comes up with a new error, 0x0000225 and says file \WINDOWS\system32\winload.exe is either missing or contains errors.

If I hit F9 again it goes to a repair screen for Windows 7. System Restore doesn't find any restore points, System Image Recovery can't find a system image. There's files on the drive I don't want to lose, so I would really like to resolve this without reformatting everything and trying again.