Updates
I'm sure this has been said a million times before, but do these piss anyone else off?
I use my grandparents' computer once a week, and every time I turn it on I have sit through at least sixty million updates. Just now Firefox (and pretty much every add-on installed, speaking of which: what's up with Personas? It updates all the time and I haven't noticed a single change since I installed it), Steam (including half the games that are installed), Windows Security Agent, Windows, and Java are updating. They were all working fine; minor updates should be optional. They always want you to reboot too >:(
/rant