What is impacted: An update is being deployed to our remaining Windows 10 Devices. This will allow these computers to continue receiving security updates from Microsoft. Level of impact: Low impact. These devices may experience a brief slowdown when the update begins installing. Timing: Beginning 1:30 AM, Thursday, December 4. Continuing until all devices have updated. Preparation: Please save your work and log off your systems at the end of every work day. Do not shut down your systems or they will not receive the update.