I've always had no issues resetting a windows password if a user forgot the administrator password on Windows 7 and down. Recently I had a user with windows 10 and another one with windows 8 that needed a password reset done and I ran into a problem. Apparently Windows 8 / 8.1 / 10 has a feature called fast startup or fast boot that does some sort of minimal hibernation. So when I start up Linux on my usb to change the utilman.exe file to cmd.exe I get an error that I can only mount the drive read-only because the drive is hibernated.
1) If I use Hiren's Boot CD to reset the password will that have a negative effect on the OS or file system ( Meaning, If I change anything in the file system while the OS is in this minimal hibernation state will that corrupt the file system etc..)
2) Is there a way around this (to turn off fast boot even though you are not an administrator)
3) Any other info that could help about how this fast boot / minimal hibernation works