Ovo ti isto radi provjereno, samo ti treba cd s os-om
http://www.howtogeek.com/96630/how-t...-the-easy-way/
Copy c:\windows\system32\utilman.exe c:\windows\system32\utilman.exe.bak
Copy c:\windows\system32\cmd.exe c:\windows\system32\sethc.exe
Net user <username> <pass>
Net user <username> /add
Net localgroup administrators <username> /add