To fix lost password in Windows XP, first start PC and press <F8> to bring up Boot options menu. Choose to boot into "Safe Mode". You will not be asked for a password in Windows XP when you boot to Safe Mode. Then Click <Start> then <Run>. In the <Run> box type "nusrmgr.cpl" and hit <Enter>. The windows user account control should start. From there, just open your account and delete the password. Close out everything and Restart to normal. Your password is now gone.