Using Group Policy Disable UAC

Go to group policy console

Computer Configuration > Windows Settings > Security Settings > Local Policies > Security Options

Change the following items:

User Account Control: Behaviour of the elevation prompt for administrators in Admin Approval Mode > Change to  ‘Elevate without prompt.’

User Account Control: Detect application installations and prompt for elevation > Change to “Disabled”.

User Account Control: Run all administrators in Admin Approval Mode > Change to “Disabled”.

User Account Control: Only elevate UIAccess applications that are installed in secure locations > Change to “Disabled’.

Try this:

User Account Control: Switch to the secure desktop when prompting for elevation:  Disabled