Consider of the security,we usually need to set a password for ours computer.If we dont often use,then its possible to be forgotten.That is a normal thing,dont be so anxious.So we should know some ways to solve the problem,except for reinstalling windows,it feels trouble.We can utilize some windows password recovery tools,l suggest “any windows password recovery 3.0″ ,because i successfully used it to reset windows xp password to blank.More,we can use it again if we happen to forget windows password one day.
The tool “any password recovery 3.0″ is a .iso image file,you can get it from the link:

http://www.anypasswordrecovery.com

Then burn it to a blank cd ,its all we need.Or you dont have a disk burnner yet,then this soft could help you,the address:

http://www.anypasswordrecovery.com/downloads/burncdcc.exe

Restart computer and insert it to the cd driver,we can operate it easily with the intuitive windows graphical user interface.

After restart again,the windows xp password has been reset to blank.So easy!