To disable UAC on Windows 8.1 or Windows Server 2012 R2:
- On Windows 8.1, go to the Search Charm and type Change User Account Control settings.
- On Windows 2012 R2, on the Control Panel, select User Accounts, and click on Change User Account Control Settings.
- In the User Account Control Settings console, move the slider to Never Notify.
You may see a prompt to confirm your selection or to enter an administrator password.
- Reboot the machine to have this change take effect.