Delete administrator Password" without any software.

Method 1:
Boot up with DOS and delete the sam.exe and sam.log files from Windows \system32\config in your hard drive. Now when you boot up in NT the password on your built-in administrator acount which will be blank (i.e No password). This solution works only if your hard drive is FAT kind.


Method 2:
Step 1.
Put your hard disk of your computer in any other pc .


Step 2. 
Boot that computer and use your hard disk as a secondary hard disk
(Do'nt boot as primary hard disk ).


Step 3. 
Then open that drive in which the victim’s window(or your window) isnstalled


Step 4. 
Go to location windows- >system 32->config 

Step 5. 
And delete SAM.exe and SAM.log


Step 6. 
Now remove hard disk and put in your computer.

Step 7.
And boot your computer...

                                                        ^_^