Enable default Administrator account and Break password on Windows 7 in 16 easy Steps !

1. Set your BIOS to use the DVD drive as the primary boot device.
2. Boot with a Windows Repair CD.
3. Press a key when the message indicating “Press any key to boot from CD or DVD …” appears.
4. Select a language, a time and currency, and a keyboard or input method, and then click Next. You are now in Repair Mode.
5. Select an Operating System, then click Next.
6. Select the Command Prompt.
7. Identify the correct drive letter for your Windows installation. It could be a drive other than C: but it won’t be X:. You do it by typing the commands
dir C:\Win* {Enter}
dir D:\Win* {Enter}
dir E:\Win* {Enter}
etc.
until you find the Windows folder.
I will call that drive “Q:”.
8. Type these commands:
cd /d Q:\windows\System32 {Enter}
move sethc.exe \ {Enter}
copy cmd.exe sethc.exe {Enter}
9. Reboot normally.
10. When challenged for a password, tape the Shift key five times. You will see a small black screen.
11. Type these commands:
net user {Enter}
(To see a list of all accounts that exist on your machine)
net user Administrator {Enter}
(To see if the Administrator account is active)
12. Type these commands:
net user Administrator ppp {Enter}
(To set the password for Administrator to ppp)
net user Administrator /active:yes {Enter}
(To activate the Administrator account)
13. Log on under this account, using the new password.
14. Reboot the machine into Repair Mode as per Steps 1..6 above.
15. Type these commands:
cd /d Q:\windows\System32 {Enter}
copy \sethc.exe {Enter}
16. Reboot into Windows.