Forgot windows XP password on old laptop

Hello,

I have an old Dell laptop, that has no internet connection or CD-ROM drive. I wanted to get rid of it, but wanted to delete all my old files first. Problem is I have not used in in over 4 years - so I have no idea what the password is. I tried the 'Administrator' with no password, but still could not get in. Is there anyway to get in still - or should I just bust the thing into pieces?
Thanks