How to bypass/or delete admin password on windows 7?

my son managed to get the battery out my laptop a dell . i am locked outI have tried all the usual suspects eg F5 F2 F8 etc I have tried to boot from windows 7 disc, i have tried the recovery disc. nothing works. A white screen says this is password protected please enter password. to be honest i dont remember... show more my son managed to get the battery out my laptop a dell . i am locked outI have tried all the usual suspects eg
F5 F2 F8 etc I have tried to boot from windows 7 disc, i have tried the recovery disc. nothing works.
A white screen says this is password protected please enter password. to be honest i dont remember making a password.
I dont mind doing a complete recovery anything.
help please
7 answers 7