Do you want to"Delete administrator Password"...?

There are to ways of deleting the administrator password:-
-------------Method 1---------------
1) First you need to boot up with DOS.
2) Then you need to delete the sam.exe and sam.log files from Windows\system32\config in your hard disc.

Now when you boot up in NT the password on your built-in administrator account will be blank (i.e No password).

NOTE:-This solution works only if your hard drive is FAT kind.

-------------Method 2---------------
1) Boot your computer with your hard disk set as secondary hard disk.
2) Open the drive in which Windows is installed.
3) Go to location windows->system32->config.
4) Delete SAM.exe and SAM.log.

FINALLY REBOOT AND YOU ARE DONE.