Windows Update is so incompetent on so many levels. Unintrusive? WUP is the opposite: constant bubbles telling you that updates are available ALL the time. Seamless? How about having to restart IN THE MIDDLE OF AN UPDATING PROCESS only to start the updates again, then begin another painstaking second restore point creation and risk every bit of data: Just happened to me. Easy? Yeah, if you put it on automatic -- otherwise, you're stuck between Windows offering "important" and "optional" updates, "optional" meaning, "just useless drivers that work with your new updates configuration even though the older ones don't". So CHECK THE LIST becomes a greater priority than even in a full FreeBSD Ports update, because WUP tends to require FAR MORE RESTARTS.

Fast? Puh-leez. 2 hours and counting for .NET security updates, 11 updates left. And with the CRAP updates GUI they have, that's so uninformative it doesn't even have a progress bar for individual updates (and if the name is long, MS thinks you don't need to read it), you might get 5 pounds fatter just from the stress you get by that stupid, stuck green line. Not to mention it only gives the stupidest information regarding system updates, like, "this update improves security"... yeah, an admin's dream. Of course, good admins need to type a key in the MS website just to know what the update was for. Then do the checklist selection, then do the update/restart process. Very productive...

Of course, this doesn't even mention the plethora of update tools the user must install and get running for Adobe, for java, for Apple, for Google, for Whatsnajuvia;lskdjf... Sigh. WUP sucks, period.