I have had a windows 7 ultimate operating get corrupted after a power outage. We have been unable to get the computer to boot into any version of safe mode, nor will it repair itself using the windows repair. I cloned the drive, then booted with a windows 10 media disk to upgrade the operating system. Windows doesn't like this and says it isn't able to install from having booted on the media disk. I am told to load the upgrade from the windows 7 operating system. This won't work either because I can't it to boot into windows 7, due to the constant reboot upon hitting the corrupted operating system. I do have the bitlocker key on a usb.
Ultimately we are trying to recover the PST on the drive, but haven't been able to. Any help would be appreciated.