I also bought Windows 7 Ultimate back in Oct 2010 which has been running perfect with all updates etc, Until yesterday that is 3 Feb 2011 ! Now my screen goes black with the nasty little message in the right hand corner reminding me that it is not a genuine
copy!! Obviously Iv'e been ripped off like many others who bought on line. But WHY have Microsoft waited 3 months to tell me ?? had they let me know earlier I would have at least had a chance to get my money back! Microsoft should accept some responsibility
for their late actions, after all the product I bought looked genuine it was sealed and I had no way of telling if it was fake or not genuine especially when it initially passed all of the Microsoft validation tests and worked fine for the 3 months