How to Reset the Administrator Password for Windows XP Professional

1. Insert the Windows XP Professional installation disc into the computer's disc drive and reboot the computer.
2. Accept the user agreement, then press 'R' on the keyboard to begin the repair process when prompted.
3. Wait out the repair process and wait for the computer to reboot. When it does, a 'Press any key to continue...' message appears. Do not press anything.
4. Press the 'Shift' and 'F10' keys at the same time when you see 'Installing Devices' appear.
5. Type 'nusrmgr.cpl' in the command prompt that appears and press the 'Enter' key.
6. Click 'Administrator' from the User Accounts window that appears. Enter a new password in the 'New Password' box that appears, then type the new password again under 'Confirm Password.' Click 'OK' and restart the computer.