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jsuther1974
2022-11-04 08:16:31 -07:00
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commit 7436e8887f
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windows/security/threat-protection/windows-defender-application-control/disable-windows-defender-application-control-policies.md
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@ -166,7 +166,7 @@ A WDAC policy that blocks boot critical drivers can cause a boot stop failure (B
To remove a policy that is causing boot stop failures: To remove a policy that is causing boot stop failures:
1. If the policy is a **signed** WDAC policy, turn off Secure Boot from your [UEFI BIOS menu](/windows-hardware/manufacture/desktop/boot-to-uefi-mode-or-legacy-bios-mode?view=windows-11). For help with locating where to turn off Secure Boot within your BIOS menu, consult with your original equipment manufacturer (OEM). 1. If the policy is a **signed** WDAC policy, turn off Secure Boot from your [UEFI BIOS menu](/windows-hardware/manufacture/desktop/boot-to-uefi-mode-or-legacy-bios-mode). For help with locating where to turn off Secure Boot within your BIOS menu, consult with your original equipment manufacturer (OEM).
2. Access the Advanced Boot Options menu on your computer and choose the option to **Disable Driver Signature Enforcement**. For instructions on accessing the Advanced Boot Options menu during startup, consult with your OEM. This option will suspend all code integrity checks, including WDAC, for a single boot session. 2. Access the Advanced Boot Options menu on your computer and choose the option to **Disable Driver Signature Enforcement**. For instructions on accessing the Advanced Boot Options menu during startup, consult with your OEM. This option will suspend all code integrity checks, including WDAC, for a single boot session.
3. Start Windows normally and sign in. Then, [remove WDAC policies using script](#remove-wdac-policies-using-script). 3. Start Windows normally and sign in. Then, [remove WDAC policies using script](#remove-wdac-policies-using-script).
4. If you turned off Secure Boot in step 1 above and your drive is protected by BitLocker, [suspend BitLocker protection](/troubleshoot/windows-client/windows-security/suspend-bitlocker-protection-non-microsoft-updates) then turn on Secure Boot from your UEFI BIOS menu. 4. If you turned off Secure Boot in step 1 above and your drive is protected by BitLocker, [suspend BitLocker protection](/troubleshoot/windows-client/windows-security/suspend-bitlocker-protection-non-microsoft-updates) then turn on Secure Boot from your UEFI BIOS menu.

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windows/security/threat-protection/windows-defender-application-control/use-signed-policies-to-protect-windows-defender-application-control-against-tampering.md
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@ -14,7 +14,7 @@ author: jsuther1974
ms.reviewer: jogeurte ms.reviewer: jogeurte
ms.author: vinpa ms.author: vinpa
manager: aaroncz manager: aaroncz
ms.date: 08/15/2022 ms.date: 11/04/2022
ms.technology: itpro-security ms.technology: itpro-security
--- ---
@ -45,7 +45,7 @@ Before you sign with PKCS #7 and deploy a signed WDAC policy, we recommend that
Signing WDAC policies by using an on-premises CA-generated certificate or a purchased code signing certificate is straightforward. Signing WDAC policies by using an on-premises CA-generated certificate or a purchased code signing certificate is straightforward.
If you don't currently have a code signing certificate exported in .pfx format (containing private keys, extensions, and root certificates), see [Optional: Create a code signing certificate for Windows Defender Application Control](create-code-signing-cert-for-windows-defender-application-control.md) to create one with your on-premises CA. If you don't currently have a code signing certificate exported in .pfx format (containing private keys, extensions, and root certificates), see [Optional: Create a code signing certificate for Windows Defender Application Control](create-code-signing-cert-for-windows-defender-application-control.md) to create one with your on-premises CA.
Before PKCS #7-signing WDAC policies for the first time, ensure you enable rule options 9 (“Advanced Boot Options Menu”) and 10 (“Boot Audit on Failure”) to leave troubleshooting options available to administrators. To ensure that a rule option is enabled, you can run a command such as `Set-RuleOption -FilePath <PathAndFilename> -Option 9`, even if you're not sure whether the option is already enabled. If so, the command has no effect. When validated and ready for enterprise deployment, you can remove these options. For more information about rule options, see [Windows Defender Application Control policy rules](select-types-of-rules-to-create.md). Before PKCS #7-signing WDAC policies for the first time, ensure you enable rule options **Enabled:Advanced Boot Options Menu** and **10 Enabled:Boot Audit on Failure** to leave troubleshooting options available to administrators. To ensure that a rule option is enabled, you can run a command such as `Set-RuleOption -FilePath <PathAndFilename> -Option 9`, even if you're not sure whether the option is already enabled. If so, the command has no effect. When validated and ready for enterprise deployment, you can remove these options. For more information about rule options, see [Windows Defender Application Control policy rules](select-types-of-rules-to-create.md).
To sign a Windows Defender Application Control policy with SignTool.exe, you need the following components: To sign a Windows Defender Application Control policy with SignTool.exe, you need the following components:
@ -85,7 +85,7 @@ If you don't have a code signing certificate, see [Optional: Create a code signi
> [!NOTE] > [!NOTE]
> *&lt;Path to exported .cer certificate&gt;* should be the full path to the certificate that you exported in step 3. > *&lt;Path to exported .cer certificate&gt;* should be the full path to the certificate that you exported in step 3.
Also, adding update signers is crucial to being able to modify or disable this policy in the future. For more information about how to disable signed WDAC policies, see [Disable signed Windows Defender Application Control policies within Windows](disable-windows-defender-application-control-policies.md#disable-signed-windows-defender-application-control-policies-within-windows). Also, adding update signers is crucial to being able to modify or disable this policy in the future. For more information about how to disable signed WDAC policies, see [Remove WDAC policies](disable-windows-defender-application-control-policies.md).
6. Use [Set-RuleOption](/powershell/module/configci/set-ruleoption) to remove the unsigned policy rule option: 6. Use [Set-RuleOption](/powershell/module/configci/set-ruleoption) to remove the unsigned policy rule option: