Reset password login windows 10
Reset password login windows booting your Windows 10 installation into the setup by changing the boot order in your BIOS to take priority with the CD
or use the ISO as a startup disk instead
Once the setup begins, hit Shift+F10
ren utilman.exe utilman5.exe
and enter
ren cmd.exe utilman.exe
end enter
cls all and reboot
If you need opne new User and add to group you need this
net user <username> /add
net localgroup administrators <username> /add