recover admin password windows 10

recover-admin-password-windows10

# Boot from Windows 10 Installation ISO https://www.microsoft.com/en-au/software-download/windows10
Shift+F10 # open a DOS command prompt window

# Create a Secondary (Local) Administrator User
# Note: it may fail if system disk is not D:, then type "Dir E:", "Dir F:" etc until you find which drive is system
    Move D:\Windows\System32\utilman.exe D:\Windows\System32\utilman.bak
    Copy D:\Windows\System32\cmd.exe D:\Windows\System32\utilman.exe
    wpeutil reboot
# allow Windows to boot up normally, not from ISO
# bring up a command prompt at the login screen by clicking the "Ease of Access" option on the Windows 10 login screen.
    net user TemporaryUser password /add
    net localgroup administrators TemporaryUser /add
    exit
# Log into Windows 10 with the new "TemporaryUser" account just created

# References
https://www.experts-exchange.com/articles/31752/How-to-Reset-a-forgotten-Windows-10-Password.html