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windows/security/information-protection/bitlocker/ts-bitlocker-intune-issues.md
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@ -22,11 +22,11 @@ This article provides assistance for issues you may see if you use Microsoft Int
![The BitLocker status indictors on the Intune portal](./images/4509189_en_1.png) ![The BitLocker status indictors on the Intune portal](./images/4509189_en_1.png)
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 resolving the following events and error messages: 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 resolving the following events and error messages:
<a id="list"></a> <a id="list"></a>
- [Event ID 853: TPM not available](#issue-1) - [Event ID 853: Failed to enable Silent Encryption. TPM is not available](#issue-1)
- [Event ID 853: Bootable media detected](#issue-2) - [Event ID 853: Bootable media detected](#issue-2)
- [Event ID 854: WinRE not configured](#issue-3) - [Event ID 854: WinRE not configured](#issue-3)
- [Event ID 851: Contact manufacturer for BIOS upgrade](#issue-4) - [Event ID 851: Contact manufacturer for BIOS upgrade](#issue-4)
@ -41,19 +41,22 @@ If you do not have a clear trail of events or error messages to follow, other ar
For information about how to verify that Intune policies are enforcing BitLocker correctly, see [Verifying that BitLocker is operating correctly](#verifying-that-bitlocker-is-operating-correctly). For information about how to verify that Intune policies are enforcing BitLocker correctly, see [Verifying that BitLocker is operating correctly](#verifying-that-bitlocker-is-operating-correctly).
## <a id="issue-1"></a>Event ID 853: TPM not available ## <a id="issue-1"></a>Event ID 853: Error: A compatible Trusted Platform Module (TPM) Security Device cannot be found on this computer
![](./images/4509190_en_1.png) You see event ID 853, which indicates that the TPM cannot be found.
![Image that shows the details of Event 853 (TPM is not available)](./images/4509190_en_1.png)
### Cause ### Cause
Device may not have a TPM chip or it might be disabled from BIOS The device that you are trying to secure may not have a TPM chip, or the device BIOS might be configured to disable the TPM.
### Resolution ### Resolution
TPM needs to be enabled in BIOS and you can check the TPM status running tpm.msc from Run. TPM needs to be in ready state (TPM version 2.0) TPM needs to be enabled in BIOS and you can check the TPM status running tpm.msc from Run. TPM needs to be in ready state (TPM version 2.0)
## <a id="issue-2"></a>Event ID 853: Bootable media detected ## <a id="issue-2"></a>Event ID 853: BitLocker Drive Encryption detected bootable media (CD or DVD) in the computer
![](./images/4509191_en_1.png) ![](./images/4509191_en_1.png)