windows password hack 4

This is the attack that have 100% success rate. It is very simple. You know that the SAM file is the file containing password hashes. So simply replace that file with a password known SAM file. Attack over. But you can do this only with another OS. To do this,

• Boot the password known Windows machine with any Linux live CD, or your bootable USB.
• Make a copy of the SAM file.
• Now boot the machine that to be cracked with any Linux as live. 
• Replace the SAM file with the file already copied.
• Thats all. The machine is HACKED!

But usually I replace the entire config folder not only the SAM file. Thus the username also will be changed. Because the folder config manages all the user related information.