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@ -18,7 +18,7 @@ ms.date: 10/18/2019
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This article helps you troubleshoot issues that you may experience if you use Microsoft Intune policy to manage silent BitLocker encryption on devices. The Intune portal indicates whether BitLocker has failed to encrypt one or more managed devices.
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To start narrowing down the cause of the problem, review the event logs as described in [Troubleshoot BitLocker](troubleshoot-bitlocker.md). Concentrate on the Management and Operations logs in the **Applications and Services logs\\Microsoft\\Windows\\BitLocker-API** folder. The following sections provide more information about how to resolve the indicated events and error messages:
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@ -41,7 +41,7 @@ For information about how to verify that Intune policies are enforcing BitLocker
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Event ID 853 can carry different error messages, depending on the context. In this case, the Event ID 853 error message indicates that the device does not appear to have a TPM. The event information resembles the following:
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### Cause
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@ -62,7 +62,7 @@ For more information, see [Troubleshoot the TPM](https://docs.microsoft.com/wind
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In this case, you see event ID 853, and the error message in the event indicates that bootable media is available to the device. The event information resembles the following.
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### Cause
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@ -96,7 +96,7 @@ You can resolve this issue by verifying the configuration of the disk partitions
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The procedures described in this section depend on the default disk partitions that Windows configures during installation. Windows 10 automatically creates a recovery partition that contains the Winre.wim file. The partition configuration resembles the following.
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To verify the configuration of the disk partitions, open an elevated Command Prompt window, and run the following commands:
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@ -104,11 +104,11 @@ To verify the configuration of the disk partitions, open an elevated Command Pro
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diskpart
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list volume
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```
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If the status of any of the volumes is not healthy or if the recovery partition is missing, you may have to reinstall Windows. Before you do this, check the configuration of the Windows image that you are using for provisioning. Make sure that the image uses the correct disk configuration. The image configuration should resemble the following (this example is from System Center Configuration Manager).
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#### Step 2: Verify the status of WinRE
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@ -119,7 +119,7 @@ reagentc /info
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```
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The output of this command resembles the following.
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If the **Windows RE status** is not **Enabled**, run the following command to enable it:
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@ -137,7 +137,7 @@ bcdedit /enum all
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The output of this command resembles the following.
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In the output, locate the **Windows Boot Loader** section that includes the line **identifier={current}**. In that section, locate the **recoverysequence** attribute. The value of this attribute should be a GUID value, not a string of zeros.
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@ -186,11 +186,11 @@ Manage-bde -protectors -get %systemdrive%
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In the TPM section of the output of this command, verify that the **PCR Validation Profile** setting includes **7**, as follows.
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If **PCR Validation Profile** doesn't include **7** (for example, the values include **0**, **2**, **4**, and **11**, but not **7**), then Secure Boot is not turned on.
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#### 2. Verify the Secure Boot state
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@ -284,7 +284,7 @@ If your device runs Windows 10 version 1703 or later, supports Modern Standby (a
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If your device is HSTI-compliant but does not support Modern Standby, you have to configure an endpoint protection policy to enforce silent BitLocker Drive Encryption. The settings for this policy should resemble the following:
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The OMA-URI references for these settings are as follows:
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@ -302,7 +302,7 @@ The OMA-URI references for these settings are as follows:
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> [!NOTE]
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> If the **Waiting for other disk encryption** setting is set to **Not configured**, you have to manually start the BitLocker Drive Encryption wizard.
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>
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> 
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> 
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If the device does not support Modern Standby but is HSTI-compliant, and it uses a version of Windows that is earlier than Windows 10, version 1803, an endpoint protection policy that has the settings that are described in this article delivers the policy configuration to the device. However, Windows then notifies the user to manually enable BitLocker Drive Encryption. To do this, the user selects the notification. This action starts the BitLocker Drive Encryption wizard.
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@ -312,7 +312,7 @@ The Intune 1901 release provides settings that you can use to configure automati
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- Support Modern Standby
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- Use Windows 10 version 1803 or later
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The OMA-URI references for these settings are as follows:
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@ -327,17 +327,17 @@ The OMA-URI references for these settings are as follows:
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During regular operations, BitLocker Drive Encryption generates events such as Event ID 796 and Event ID 845.
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You can also determine whether the BitLocker recovery password has been uploaded to Azure AD by checking the device details in the Azure AD Devices section.
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On the device, check the Registry Editor to verify the policy settings on the device. Verify the entries under the following subkeys:
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- **HKEY\_LOCAL\_MACHINE\\SOFTWARE\\Microsoft\\PolicyManager\\current\\device\\BitLocker**
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- **HKEY\_LOCAL\_MACHINE\\SOFTWARE\\Microsoft\\PolicyManager\\current\\device**
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