Rant about Microsoft

Grr, my computer's suddenly decided that because my dad put some more RAM in it recently, it needs me to reactivate windows. Unfortunately, when I tried to do that, it then decided the product key, whatever that means, has been used too many times, and so I had to find another or something like that. I don't know why it couldn't tell me straight after my dad did it, so that I could get him to sort it before he went off to Germany. Now it means I won't have any computer tomorrow, apart from the downstairs ones, because it expires tomorrow. It gave me like two days to do it, which is just ridiculous. I mean, do they never think that maybe a teenager who has no idea what or where a product key can be found is going to be able to sort it in two days? So, I'm annoyed at microsoft. Plus, IE's pretty naff, seeing as I was reviewing browsers before for no real reason whatsoever.