Our labs install our printers through a simple Start Menu\Programs\Startup VBS script that points to a printer depending on the machine name. This saves anywhere from 1-5 minutes from our login times.
This morning after the new cumulative update KB3163912 all our lab machines are now prompting for admin credentials to install these print drivers.
I have changed the Point and Print Restrictions section of our GPO to both "disabled" and "enabled" but without server restrictions, and disabling elevation prompts. Neither take any effect.
After removing KB3163912 the printers install fine without any prompts.
We can add our printers back to the typical GPO location for now, but no doubt we will receive complaints on our login times increasing.
GPResults show our group polices are processing fine on machines that are both pre and post KB3163912.