Hey guys. I have been running Vista x64 Ultimate successfully here for a while but I'm planning to move on to Windows 7 soon. To get Vista activated I had to flash my AMI Bios to include an MSI Slic. MOBO: MSI P35 Platinum Combo *Check this thread for reference of when and how I did this:* http://forums.mydigitallife.net/threads/4071?page=58 From what I've been reading in the related threads here on the forum I'm aware there are no available MSI OEM keys for Win7 Ultimate. Could I just use any of the other 'Ultimate' OEM keys (Dell, Acer...) as long as my slic and certificate matches, or will I need to make changes to the Bios to get it to work? Here's the key that I've been using with Vista x64. 89587-OEM-7332132-00031 Don't remember if this was even an MSI key or already from another brand. Thanks and sorry for the newbie issue.