Hi, I have a legit windows 7 CD key. I installed it on my desktop and my sister installed in on her laptop. Apparently this is against the TOS and when windows does a vertification check eventually, everything goes to shit. Can someone tell me what happens exactly? My sisters really pissed at me because its her CD key and she thinks her computer is going to explode because she shared her key with me. She is demanding I uninstall my Windows 7, except I cant. I dont have a back up OS on me.