Ati Es1000 Driver Windows Server 2016 Link

bcdedit /set testsigning on This enables Test Mode (you will see a watermark on the desktop). Reboot. Now the ATI ES1000 driver will load automatically without pressing F8.

To revert later:

The ATI ES1000 is a legacy graphics controller based on the older Radeon 7000 series architecture. It was never designed to support GUI-heavy server environments. However, Windows Server 2016 (especially the Desktop Experience installation) requires a functional VGA driver to avoid interface lag, resolution caps (stuck at 800x600), and constant "Standard VGA Graphics Adapter" generic errors. Ati Es1000 Driver Windows Server 2016