hi,I have accidently locked myself out of the main Administrator account on Vista HomePremium.I know there's two admin accounts on my pc but the backup "administrator" account is hidden even in safe mode.so there is only my admin account, a standard account, and the backup account.I don't know My admin's password or the standard accounts password. so if there's some way of making that other admin account visible that would be great.otherwise anyother way would be helpful. Please help me QUICKLY. Thankyou

boot the machine with a mini pe disc then reset the admin password

Thanks but i already fixed it.i was so paranoid about the problem i went looking on the internet with another computer and found "Offline NT Passwords" and burnt that to disk, that fixed my admin account.thankyouanyway for your help!