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Thread: Z77 Extreme4 - Windows 8 Secure Boot




  1. #1
    Darkammo is offline Junior Member
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    Default Z77 Extreme4 - Windows 8 Secure Boot

    I was interested in upgrading to Windows 8 and when I ran the upgrade assistant it said that my PC didn't support Secure Boot. My bios was a bit old and I noticed there was one for Windows 8 so I updated to version 2.40, but the Update Assistant still complains. Is that normal?

    Microsoft said this on the requirements "Secure boot requires firmware that supports UEFI v2.3.1 Errata B and has the MicrosoftWindows Certification Authority in the UEFI signature database"

  2. #2
    Darkammo is offline Junior Member
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    Default Re: Z77 Extreme4 - Windows 8 Secure Boot

    Has anyone else experienced this or can check? The upgrade assistant is free. Bios 2.10 said "Support for Windows 8" so I imagine 2.40 should support secure boot. Or is that a bad assumption?

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    Default Re: Z77 Extreme4 - Windows 8 Secure Boot

    I just installed Win 8 RTM on 2.40 on this exact MOBO. it doesn't give any errors. Also I noticed in UEFI there is a Secure Boot option now

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    Darkammo is offline Junior Member
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    Default Re: Z77 Extreme4 - Windows 8 Secure Boot

    Quote Originally Posted by dandy55 View Post
    I just installed Win 8 RTM on 2.40 on this exact MOBO. it doesn't give any errors. Also I noticed in UEFI there is a Secure Boot option now
    Fresh install or using Upgrade Assistant?

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    Default Re: Z77 Extreme4 - Windows 8 Secure Boot

    fresh install, let me try the upgrade assistant and tell you if that error comes up

    Yes, it does come up, but maybe just because it is disabled in UEFI, however I installed windows with it disabled (and on a non compatible firmware 2.0 previously) with no errors
    Last edited by dandy55; 10-27-2012 at 05:35 AM.

  6. #6
    Darkammo is offline Junior Member
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    Default Re: Z77 Extreme4 - Windows 8 Secure Boot

    Quote Originally Posted by dandy55 View Post
    fresh install, let me try the upgrade assistant and tell you if that error comes up

    Yes, it does come up, but maybe just because it is disabled in UEFI, however I installed windows with it disabled (and on a non compatible firmware 2.0 previously) with no errors
    Hmm. That's more reassuring then. Maybe it's just Update Assistant being wonky. Thanks!

    If anyone has the time to check if it actually works Microsoft Windows 8® - Enabling Secure Boot
    says Once the OS is installed and Secure Boot is enabled, the next step is to verify that secure boot is operational.
    To verify Secure Boot do the following:

    1. Open PowerShell as administrator
    2. Run the command “confirm-SecureBootUEFI”
    3. If secure boot is working, “TRUE” will be displayed on the following line.
    4. Otherwise “FALSE” will be displayed

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    Default Re: Z77 Extreme4 - Windows 8 Secure Boot

    Sorry, can't help you there - I already uninstalled it. My TP-Link Wifi card is terribly slow on it, with both MS drivers or Manufacturer drivers (for Win 7)

  8. #8
    Darkammo is offline Junior Member
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    Default Re: Z77 Extreme4 - Windows 8 Secure Boot

    Quote Originally Posted by dandy55 View Post
    Sorry, can't help you there - I already uninstalled it. My TP-Link Wifi card is terribly slow on it, with both MS drivers or Manufacturer drivers (for Win 7)
    No problem, thanks for all the help!

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