A lot of people have forgotten their password. So there is no need to be worried. Just see how they solve such problem with Windows Password Recovery 6.0. And you can find it on http://www.recoverlostpassword.com/products/windowspasswordrecoery.html

Hi, i suggest you format your laptop in other to put it back in place, because i cant advice you do anything else other than formating.

Just format it as i advice.

I wish best of luck.

Download "Hiren's Boot CD"
Here is the link

http://www.hirensbootcd.net/

Just click the download button and extract the file using Winzip or Winrar.

Burn the ISO files with Nero or MagicISO or PowerISO in a CD.

Boot the system using that CD (set the First Boot Device as CD-DVd ROM in BIOS).

Select "Start Mini Windows XP"

and find ERD Commander and reset the password.

That's it.