I recently purchased this notebook from a friend that purchased a new laptop and I cant access anything. cant logon the bios ,it asks for current password and there isn't one .is there a default password that may be used ? or do I need a bios recovery disc...? I tried pulling the battery on the board but the same message appears.when it goes to the boot manager it shows no options what so ever .can I change the hard drive and put windows 7 on it?