Verifying shim SBAT data failed:

Anonymous
2024-08-23T17:58:03+00:00

Trying to boot from a usb stick In win 10 I get the message "Verifying shim SBAT data failed: Security Policy ViolationSomething has gone seriously wrong: SBAT self-check failed: Security Policy Violation" Can someone help me resolve it? Is this from the latest windows update?

This seems to have started right after a win update but I'm not sure if it's a coincident or not. Thanks for any help

Windows for home | Windows 10 | Performance and system failures

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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  1. Anonymous
    2024-11-10T15:16:33+00:00

    How to do this if I can’t enter to the pc?

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  2. Anonymous
    2024-10-23T14:58:36+00:00

    This does not work for me. I have a dual boot windows 11 and. Ubuntu machine.

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  3. Anonymous
    2024-10-12T15:22:04+00:00

    Hi, I am Dave, I will help you with this.

    Are you dual booting Windows with Linux?

    If you are, this is caused by a reported problem in the August update if you can get into Windows, either uninstall the August update, or open Command Prompt as administrator and run this command, then press Enter.

    reg add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecureBoot\SBAT /v OptOut /d 1 /t REG_DWORD

    Then close Command Prompt

    Tried this but didn't solve the problem. I was trying to boot into elementaryOS from my bootable USB.

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  4. Anonymous
    2024-09-11T19:41:49+00:00

    Yes. Another person sent me instructions that have both OS systems working.

    Here are his instructions:

    Amruth DD has replied to the question Verifying shim SBAT data failed: that you are following in Microsoft Support Community.
    Try pressing the F2 key repeatedly immediately after turning on the power. This should open the BIOS menu. Once the BIOS menu opens, navigate to the security/boot option (it may vary depending on the machine) and locate the "Secure Boot" option. Change it to "disabled". Save the changes.<br><br><br><br>This might work.

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  5. Anonymous
    2024-09-04T21:44:47+00:00

    Hmm, it seems the reg add made things worse, it didn't help and afterwards I uninstalled the August update, but due to the registry change the important part was not uninstalled. Shouldn't the order be: first uninstall August update, then run the reg add command?

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