Windows 8 and 8.1 Forums


Accidentally installed as MBR. Should I reinstall as GPT?

  1. #1

    Accidentally installed as MBR. Should I reinstall as GPT?


    Hi, I accidentally reinstalled Windows 8.1 on a MBR partitioning style. I'm debating whether to start over and make sure I do it properly as GPT. I haven't installed any programs yet...is it worth it? (my MB is recent, supports UEFI, and im installing to an SSD).

      My System SpecsSystem Spec

  2. #2


    Posts : 879
    Windows 10


    Quote from this post:

    Secure Boot

    Secure Boot only work in UEFI Boot Mode, when you enable Secure Boot in your PC's UEFI firmware (BIOS) settings.

    Secure Boot protect users from rootkits and other low-level malware attacks by blocking unauthorized (non-signed) executables and drivers from being loaded during the boot process.
      My System SpecsSystem Spec

  3. #3


    And is Windows 8 Secure Boot enabled by default, or do I have to do something to turn on that feature?
      My System SpecsSystem Spec

  4. #4


    Posts : 879
    Windows 10


    Go to UEFI firmware (BIOS) settings and check the Secure Boot setting.

    Secure Boot - Enable or Disable in UEFI

    Secure Boot - Confirm Enabled or Disabled in Windows 8
      My System SpecsSystem Spec

Accidentally installed as MBR. Should I reinstall as GPT?
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