Hi I am trying to install the Windows XP mode on my evaluation copy of W7 Ultimate. I have already installed the windows xp mode, and I have run the compatiliby tool (to check that Virtualization is enabled). I have completely turned off my computer twice (for bios restart). I am, however, getting a weird error: When i try to install windows virtual pc (KB958559 for ultimate 64 bit and in English, the same as my OS) I get a warning message "This update is not applicable to your computer". I have Q6600@3.2 + HD4870 1Gb + 4Gb DDR3 + Asus P5E What should I do? Thanks.