Tips 1: Win XP Password Reset Disk to Help Recover Lost XP Password

Note：This will only be available before forgotten Windows XP password.
Creating a Windows XP password recovery disk is the easiest and most convenient way to help us reset XP password While, it is always the most unfamiliar method for Windows XP PC computer users. Now, if you have set your Windows XP username and password account, please do as the following steps to create a recovery disk, which will help you later or earlier.
A. Start -> Control Panel -> User Accounts -> Select the user that needed to set a disk.
B. Choose "Prevent a forgotten password" on the left of Related Tasks.
C. Prepare a blank floppy disk and then do the following operation as the Forgotten Password Wizard.
D. When the progress indicator displays 100% complete, click “Next” and then Finish.
E. Remove the floppy disk from PC and keep it.
Then, whoever owns the created disk, he/she can access your account and own the account right to do something. Of course, you can recover lost Windows XP password with the disk! 

Tips 2: Login XP with Default Administrator from Safe Mode

In Safe Mode, we can logon with the built-in Administrator user account and reset lost password with this account if we didn't change its password or can access it.
A. Start Windows XP computer and press F8. Choose "Safe Mode" and press "Enter" key at the Advanced Boot Option windows.
B. On the login screen, select the Administrator account and keep the Password column blank (or input the changed password if the default Administrator account password has been reset).
C. Click Start -> Control Panel -> User Accounts -> Choose the account needed to reset password -> Change the password.
D. Input a new password and confirm it to finish XP password reset.

Tips 3: Remove Forgotten XP Password with Administrative Account

If there is still another user account which we remember with administrative privileges, we can opt it for Windows XP password recovery.
Restart system and boot the system into Safe Mode. Click on the icon for the administrators account at the Account Log on Screen. Once system has booted to the XP pc, reset password with following steps.
A. Start -> Control Panel -> Administrative Tools -> Computer Management.
B. Double click Local Users and Groups -> folder Users.
C. Right click the account user name which password was lost, then click Set Password.
D. Reset password - keep New Password and Confirm Password blank.
E. After finished, restart PC and login.

Tips 4: Recover Windows XP password with free Ophcrack

You can use Ophcrack to recover passwords within 14 characters. For you have to download a 496MB ISO file, it will spend your much time.

Tips 5: DIY a CD/DVD/USB Password Reset Disk to Change Windows XP Password

With professional Windows XP password recovery tool, you just need burn an ISO image file to the CD/DVD via an accessible PC. Take Windows Password Recovery Basic as example, you can finish Windows XP password recovery with 3 easy steps:
Step1. Download Windows Password Recovery Enhance and burn the ISO file to a CD/DVD/USB.
Step2. Boot the target computer from CD/DVD/USB.
Step3. Recover lost Windows XP password with the burned CD/DVD/USB.

Do you still find lost XP password? Try the above methods listed, believe you can change Windows XP password quickly! You may be pleased to share them with your friends who forgot XP password!

source: http://www.windowspasswordrecovery.net/article/recover-lost-windows-xp-password.html