Also I didn't mention the updates that require reboots are only released once a month. From here http://blogs.msdn.com/b/b8/archive/2011/11/14/minimizing-resta

Also I didn't mention the updates that require reboots are only released once a month. From here http://blogs.msdn.com/b/b8/archive/2011/11/14/minimizing-restarts-after-automatic-updating-in-windows-update.aspx http://blogs.msdn.com/b/b8/archive/2011/11/14/minimizing-res... "WU will consolidate all the restarts in a month, synchronizing with the monthly security release. This means that your PC will only restart when security updates are installed and require a restart. With this improvement, it does not matter when updates that require restarts are released in a month, since these restarts will wait till the security release. Since security updates are released in a single batch on the second Tuesday of every month, you are then getting essentially one restart a month."