I forget administrator password in winxp

Many times we face this problem when we or our friends forget Windows XP password and can't log into Windows. So here we are posting a few methods / utilities which can be used to reset Windows password:
1rd Method:
Try following trick which is actually a loophole in Windows XP Setup and a big security hole:
A. Boot using Windows XP Setup CD and follow the instruction like Accepting EULA, etc.
B. When it asks to repair your existing Windows installation, accept it and press "R" to run the repair.
C. Setup will start repairing your Windows and will start copying files, etc.
D. After a few minutes setup will restart your system and when it restarts don't press any key when it shows "Press any key to continue..." otherwise Setup will start from the beginning. Don't press any key and setup will resume where it left.
E. Now it'll start doing other tasks and will show a small progressbar with a few details in left side.
F. Look carefully at the details and when it shows "Installing devices", press <Shift>+F10 keys in your keyboard.
G. It'll open a Command Prompt window. Now type nusrmgr.cpl and press <Enter>.
H. It'll open the same "User Accounts" window which you see in Control Panel.
I. Now you can remove or reset any account password without any problem.
2th Method:
There are many 3rd party utilities which claim to recover forgotten Windows password:
Windows Password Recovery Tool 3.0 Service:
Windows Password Recovery Tool 3.0 is a program that works instantly to remove any lost or forgotten password. Simply boot your PC from the supplied Boot CD, and get access to forgotten Windows and administrator passwords in just seconds. Their method is so much faster/easier, and works great!

If you have any other account which has administrator privileges, follow these steps to reset the password for the administratpr account:

Right click on My Computer>Manage>Click on the plus sign next to Local Users and Groups>Select USers>Right click on Administrator>Click on Set Password>Set your desired password.

If you are unable to logon to the existing Windows XP installation, then click on the link mentioned below for more information:

http://pubs.logicalexpressions.com/pub0009/LPMArticle.asp?ID=305

Thanks

Goto safe mode there you wlll see the administrator account .login with administrator account and then goto control panel and then open 'user' .now select the user for which you want to change the password..