There can be various conditions when you get struck as you have forgot the admin password account or you want to play upon with your friend. There are various tutorials available and various boot loader linux flavours available for cracking the password . But I have selected the most simple and small loader for you to work with.
Note that there is no way by which you can determine the old password but you can reset it with a new password.
Offline NT Password & Registry Editor
I have tested this software on all the current versions of windows 7 , windows vista and on windows server 2008 . The download is an iso image of the setup. Read the readme.txt file for more instructions of installing.
You can also make a bootable pendrive and boot from it.
- Get the machine to boot from CD.
- Load drivers (usually automatic, but possible to run manual select)
- Disk select, tell which disk contains the Windows system. Optionally you will have to load drivers.
- PATH select, where on the disk is the system?
- File select, which parts of registry to load, based on what you want to do.
- Password reset or other registry edit.
- Write back to disk (you will be asked)