I have complained about this to Microsoft. The explanation is that the average user may not reboot at all...hence the nagging.

>PMFJI, but if the people at Microsoft insists in asking me, after installing the update, if I want to reboot "now" or "later" EVERY FRICKING FIVE MINUTES, or, as it does from time to time, when I come back in the morning and found that it REBOOTED my computer because it felt good to do it, then I do not think is a good thing, or even concept as Martín suggests, it is a torture (I usually left things open all the time, for example FireFox with several tags I am interested in reading when I have time, but I am not interested in bookmarking them). And do not get me started with the "The task blah blah is not responding, do you want to terminate it?" after I SHUT DOWN WINDOWS!!!! Oh man, do I hate that?