Windows 7 UAC blocking Symantec Endpoint Protection scan window

Hi,

I'm running Windows 7 on a secure domain with many GPOs applied, SEP 12.1 client is also installed.
When running a scan, either by right-clicking on a file and selecting "scan for viruses" or from within the SEP client window, I get an error message "Symantec Endpoint Protection could not open this dialog".
I've found the GPO rule that's preventing the window from opening, it's User Account Control: Run all administrators in Admin Approval mode. Once this is disabled and the PC is rebooted, the dialog opens fine.
Turning off any function of UAC or even this specific rule can't be done, as it's required to be left as it is..
Any way of allowing the SEP scan window to run without disabling UAC settings?

Thanks