Why are automatic updates set to run at 12:00 noon each day and why does a force reboot happen from time to time?
Automatic updates are necessary to ensure that all computers receive the latest patches, fixes, and security updates in a timely fashion. Since most users turn off their computers at the end of the day (as is recommended), 12:00 noon appears to be the best time to do the update because most people are gone for lunch. Sometimes a particular patch or fix replaces key system files and requires a reboot to finish the installation.