This morning I was trying to upgrade Windows 7 to Windows 8 and ran into a problem:
Your firmware doesn't support Secure Boot.
What is Secure Boot, and what can I do in this situation if my firmware doesn't support it?
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I think (some or all of) the following are true
Some people suspect that, at the very least, Microsoft are happy to use security as a justification to force on hardware makers a change that as a major side effect makes it hard or impossible to install a non-Microsoft operating system on that hardware.
P.S. I am pretty uncertain about many of the above points and welcome corrections, directly or in comments.
Secure boot is a built in security feature in windows 8 which requires some special hardware configuration and some how this secure boot feature makes the linux users unable to dual boot their PC with these two different OS.
Check out this article for more info on secure boot: http://www.pcworld.com/article/248342/windows_8_secure_boot_the_controversy_continues.html
However now there is a workaround on this for linux users: http://www.pcworld.com/article/2011669/linux-foundation-unveils-a-new-solution-for-win-8-secure-boot.html
Secure boot basically is a UEFI (BIOS) lock which has been implemented on some new Windows 8 machines that locks out installation of Linux.
Oh darn, as for you question if you don't have secure boot enabled in your UEFI bios do nothing, if you have it available to enable / disable it is up to you, I think it gives you extra security, but make sure you can disable it once enabled.
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