Even through I'm in the PC world, I hate everything Micro$oft, so I don't use anything of theirs that I can avoid!
So my response is don't use their "live onecare" unless you want them messing in your computer.
I've been ticked off with them for years, but it's gotten worse with XP. If you register it and everything, they will void your license and actually disable it on your compter (from Wash State!) if you make "too many" changes. Since I'm constantly adding and deleting programs, I managed to void XP twice in 3 months. Now, I just don't register it, and only manually download their security updates to my computer. That's just not "right."
Linux is getting more and more probable, now, looks like we'll totally get away from M$ altogether in the next 5 years!! Yeaaaaa! Take THAT:


Micro$oft!!


Did I say I HATE Micro$oft??
Cheerio!
Elizabeth