Kevin. Monitor screen goes black with error message of "Your device run into a problem and needs to restart. Stop code critical_process_died (0xEF).. Updated graphics card driver. Rebooted. Checked device manager for System Devices\ path that matches WHEA-logger error in event viewer. Run SFC /scannow. No errors. DISM restore image and component restore. Disabled 3rd entry that matches WHEA-logger error. Awaiting turnaround..