I had the update install on my main PC and it must have detected the early-leaked Lenovo key that i originally used last july before any other OEMs were available. This was a couple months ago, when it first came out, so I don't remember fully what i did to get rid of it. But i'm fairy sure i just used the commando prompt and entered the dell Win7 ultimate key from the thread with the list of keys on this forum. It validated and i have had no issues since. Another computer in the house, which i was behind on updates with, just installed the update this morning. Like mine PC it has modded BIOS with a Dell 2.1 SLIC and a Dell cert (i used the SLIC checker tool thing to make sure that both were still installed and check out, no red, all green). I've tried about 6 different keys and i get the message saying they were successsfully added, but i log off or restart and it still gives me the same message when i log in. I tried adding the cert again and then the key, and then the other way around, tried re-validating through the Computer properties screen and it still says its not genuine. Wtf?