>I definately always do a manual update, I pick something like a Saturday morning while I get a cup of coffee and just let it does it's thing. I went to this route as at some point in the past as Windows would do the reboot in like a 10 minutes or so unless you told it to postpone - then it would ask again at some point, which caused a loss of work if I happened to be away from the computer when that 10 minutes ran out..
Yes, the postpone can be adjusted to every 4 hours so it is less annoying. But, even on every weekend would be too much. Just to reload the entire environment take a lot of time so I try to limit the reboot to between a few months, if possible.