Reset Windows Password:
reset Directory Services Restore Mode password
What is DSRM
Directory Service Restore Mode (DSRM) is a special boot mode of your Operating System, aimed mainly for recovering damaged Active Directory. Often is DSRM used to recover domain accounts or domain administrator passwords. For example when it is impossible to log on to the computer.
In this way, DSRM is something similar to Safe Mode. Just like in Safe Mode, to get into it one needs to press the F8 key repeatedly. The main trick is to do it immediately after BIOS POST screen, but before the Windows logo appears.
Selecting data source
Password recovery process for DSRM account is almost the same as for regular user account. First you'll have to show the location for SAM and SYSTEM registry files.
Enter a new password or just set the input field blank to reset it. Then confirm resetting by clicking the 'RESET/CHANGE' button. The program should ask you to create a backup file. You can use the backup file later to roll-back changes.