Windows 8 (or, more likely, UEFI) warning.

[Ben Scott]

On Sat, Jan 19, 2013 at 1:32 PM, Bruce Labitt <bdlabitt at gmail.com> wrote:
> 2.  Why would motherboard manufacturers do this?  Don't they sell world wide
> where there other OS's?

  There are a couple of motivations for Secure Boot I'm aware of:

Anti-Malware - The typical computer user cannot be trusted to make
good decisions about the software they try to install.  More and more
malware is attacking the system before the OS proper even boots.  The
industry is locking things down for to protect people from themselves.
 This is the primary driving force.

Tivoization Enforcement - Embedded systems manufacturers who want to
prevent anyone from modifying their products without permission.  This
is a much smaller driving force.  Your typical embedded systems
manufacture can already do this with custom firmware; UEFI just
provides a more standard way to do it.

-- Ben