Problem on user account

[anumons143]

whenever i go for any thing on user accounts, a dialogue box appears which says that
"program name : user accounts control panel
verified publisher : microsoft windows
file origin : hard drive on this computer
to continue,type an administrative password, and then click yes."
i doesn't remember any administrative password.
i can't do anything because of this.even i can't uninstall any programs..
3 user accounts are in my computer,.but none of it is showing as administrator account,.2 are standard users and 1 is guest user..how i could solve my problem.

 

[tripledouce]

That is the UAC or user account control if you are the administartor the password is the same as what you use to log into your account. If not then you need to see who is the admin account on the device by checking what groups the other users are in.