Why not ask your friend's dad what password he set? If you sent him the laptop with no such password, and it came back with said password, it stands to reason he was the one who set it up.
I was handed down a g56-129wm notebook and I screwed up badly. I had changed my windows 7 password again but this time I had forgot the password. I had sent my laptop to a friends dad that told me he can reset the password using a rest password software. When the computer was restarted instead of going to the windows log in my laptop turned on with admin password or power on password screen. Well since this laptop was given to me I have no idea what the admin password or the power on password. Please help.. When I hit the password in correctly it says system disable  I restart the laptop and once again it is asking me for the admin password or power on password. Please help