What's your problem Microsoft?!

Since when do you have to buy a copy of windows for every machine you have in the house? I reformatted my computer yesterday and used the family’s winXP key when I installed windows again. I updated it today, rebooted and not it says it’s not a valid copy of windows!

Also, the key has been reported stolen! How?! :m:

We’ve always used the same windows cd on our computers, maybe we missed something, but it has worked for several years now!