1- Restart the server and chose boot option from CD.
2-click NEXT and click on repair mode your COMPUTER.
3-click on NEXT and SELECT COMMAND PROMT on NEXT and SELECT COMMAND PROMT.
4-.x:\SOURCES>dir ENTER (ALL COMMAND GIVEN BELOW)
dir (file not found)
dir (file found Like-windows)
MOVE C:\Windows\System32\Utilman.exe C:\Windows\System32\Utilman.exe.bak
COPY C:\Windows\System32\cmd.exe C:\Windows\System32\Utilman.exe
5 – Now you can go ahead and reboot your machine. When its done booting up again and you are at the Logon screen click on the Ease of access icon.
6 – use below command for password change
net user administrator *
And then set the password which you want. Close cmd and log on.-