To reset the Administrator password on Windows 10. I'm unsure if this will work if the PC is parts of a managed domain.
1. Boot into a USB Windows installer instance
2. Open a command prompt
3. Navigate to the boot drive of the computer. In my case, the C drive
cd C:4. We're going to copy the CMD application to replace the ‘Utiliman.exe’ program that can be run from the login screen.
move C:\Windows\System32\Utilman.exe C:\Windows\System32\Utilman.exe.bak
copy C:\Windows\System32\Cmd.exe C:\Windows\System32\Utilman.exe5. Remove the USB drive you're booted up on and restart the PC.
6. Once back at the login screen, select the Ease of Access button - a command prompt should open.
7. Type net user to display the users on the system.
net userTo change a existing user's password
net user ross ********To create a new user
net user ross ******** /add8. To restore the Ease of Access functionality at the login screen, move the .bak file we made back to the original filename.