A Microsoft Windows 8 preloaded PC may not boot to other devices, such as CD/DVD, USB, network, etc, even though these same devices can successfully boot on other PCs running previous versions of Microsoft Windows.
Microsoft Windows 8 preloaded PC
To boot to Legacy devices, it is necessary to disable Microsoft Windows 8 default settings in the Setup Utility:
Microsoft requires Lenovo to configure all Microsoft Windows 8 PCs with the following UEFI firmware (BIOS) settings:
With these settings, it is not possible to boot a Legacy operating system such as DOS or Microsoft Windows XP. Also, it is not possible to boot an operating system that is not enabled for Secure Boot, such as Microsoft Windows 7 and certain Linux distributions.
For these reasons, it is not possible to boot many existing diagnostic or backup/restore tools on a Microsoft Windows 8 PC with default UEFI firmware (BIOS) settings.
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