Windows 7: I need help about administrator permissions.

I have this problem, whenever i try to install something it wants me to enter the administrator password. My dads account is admin, once he left his account logged in so i went to it, and made the user account setting to the minimum, so any user of the pc, can install or make changes to windows, i tough i wont need admin password anymore, but when i tried to install a game, it said, that i have to be logged in admin account. So my question, is there any program or any way i could get admin password, without reseting it? Or is there anyway how i can avoid that error?

To the best of my knowledge we do not help people bypass passwords.
Please read.
Windows 7 Forums - Forum Rules

Sorry it's against our rules to help you bypass your dads password