TWO problems; allowing a limited user access to an admin folder

1. So when I try to that, it goes FILE BY FILE but some cause a window to show up which reads: access denied!! And I am admin, makes no sense! 2. When I am on a limited user and I try to access an admin folder or directory, or run application as admin I am asked to enter the admin's password. for folders I just click on the folder and it opens a window that asks for the admin's password, for...