"Automatically update all" scenario.
Recently I discovered that not all combinations of Checkboxes in WSUS are working. Let's say all supported Windows and Office version updates took more than 400 gigs, i did not count more , just end of space hdd. If you decided to download "Approved updates only" you have to be careful. Since updates are Approved automatically, You think they will be downloaded and approved automatically. Unfortunatelyy they will never be approved because Updates are Approved after they are downloaded, so we get unworking combinatoin of checkboxes.
