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think jimlynch hit the nail on the head. The one "window" that is still open for Linux users, no pun intended, is that while Microsoft requires PCs to be shipped with secure booting enabled to get the "Designed for Windows 8" sticker/logo/splash screen, hardware vendors can still give purchasers the choice to disable the secure boot feature. That would make it a non-issue. However, the operative word is "can", which means that manufacturers do not have to provide the option, and I would bet that many will not. The thing is, UEFI secure boot offers very real security advantages. It lets IT Departments prevent any unapproved OS from being booted, and protects against rootkits. From a purely rational point of view, Microsoft has little incentive NOT to require secure boot. It does offer real advantages to most users, and the percentage of customers that will even be aware of it is very low, and the number that will be upset is even less. I hope most machines ship with the option to disable the secure boot feature, but I wouldn't bet on it.