Q: If I enable Secure Boot on my Windows 8 machine can I still dual-boot?

A: In Windows 8 computers, a feature enabled by UEFI--Secure Boot--was designed to keep certain OSs and software from loading during startup. Secure Boot provides a secure handoff between the hardware and the desired OS, ensuring other code, such as malware, can't get in between the hardware and the signed OS or impersonate the OS.

Related: Windows 8 Dual Boot Video

When Secure Boot is used, there are often questions if dual-boot can still be used, allowing multiple OSs to boot on a single piece of hardware. Below is a summary of the dual-boot scenarios that can work:

  • Windows 8 and another Windows 8 installation
  • Windows 8 and a Windows 8 Windows To Go (for USB)
  • Windows 8 and certain Linux distributions that have their loader signed and that are trusted by the hardware

Windows 8 and Windows 7 won't work, as the Windows 7 UEFI implementation requires a compatibility mode to be used, which does not work with Secure Boot.

Related: Q: I have Windows 8 dual-booted with Windows 7 but see only the Windows 7 boot menu. How can I see the Windows 8 boot menu?

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