So not exactly sure what's going on, but in the last two days I've had two of my laptops come up and tell me they're not genuine. A few years ago that wouldn't have meant anything, but currently all of my computers have genuine licenses on them. This happened with both a Vista home prem. sp2 32bit on my fiance's unit and on my lenovo which is running win 7 ult. 64bit. Both of them say "This copy of windows is not genuine" and pop up the annoyances to purchase a genuine license. They both do the 2 hour shut off thing and have disabled visual effects and backgrounds. On my lenovo I called windows and complained and they said that obviously I had either stolen my key or had let someone else use it. Neither of these are the case and I offered to show them proof that I had purchased the 7 ultimate and they said that wouldn't help. I eventually got pissed and used my recovery partition (ew) to go back to vista premium. Later that night my fiance complained that her background had gone away and to my dismay her's was now displaying the same errors. With hers I just punched her key in again and it activated and passed genuine advantage. Hoping that this will work for me I'm currently getting ready to re-install 7 on my laptop. Has anyone else ever dealt with these issues? I'm not currently running any non-legit Microsoft programs on either of these units. I have legal copies of both OS's and a 3 user license of office on both. Using Kaspersky Internet Security on both as well. I still have two computers running Win 7 that haven't had this issue that are set up the same way, hopefully those won't take a dive too.