How do i delete windows 7 on a dual partition on my hard drive without knowing a

[toledotimq]

Hello,
i bought a used computer from a pawn shop with windows xp and windws 7. I boots up 7 but is to slow. windows xp has a password needed to open that i dont know. how can I dump 7 and open xp without the password.

 

[Dark Lord of Tech]

Tom's Hardware doesn't provide help to bypass password protection.Sorry.