How do I disable administrator prompt in Windows 8/Windows 2012?

I want disable administrator prompt in Windows 8 and Windows 2012, For this I did the following tasks:

1. Go to Administrative Tools → Local Security Policy
   For windows 8 run secpol.msc
2. Find Local Policies --> Security Options, in the left side of the window, and scroll down to the button.
3. User Account Control: Admin Approval Mode for the Built-in Administrator account Disabled. (Default) The built-in Administrator account runs all applications with full administrative privilege.
   
4.