After the device restarts, verify the encryption status. Remove the bootable media, and restart the device. Resolution for Event ID 853: Error: BitLocker Drive Encryption detected bootable media (CD or DVD) in the computer To avoid this situation, the provisioning process stops if it detects a removable bootable media. If the device configuration changes later (for example, if the media is removed), BitLocker recovery mode automatically starts. The event information resembles the following.Ĭause of Event ID 853: Error: BitLocker Drive Encryption detected bootable media (CD or DVD) in the computerĭuring the provisioning process, BitLocker drive encryption records the configuration of the device to establish a baseline. In this case, event ID 853 is displayed, and the error message in the event indicates that bootable media is available to the device. Event ID 853: Error: BitLocker Drive Encryption detected bootable media (CD or DVD) in the computer The TPM status in the TPM management console is similar to the following statuses:įor more information, see Troubleshoot the TPM.To resolve this issue, verify the following configurations: Resolution for Event ID 853: Error: A compatible Trusted Platform Module (TPM) Security Device cannot be found on this computer The device that is being secured may not have a TPM chip, or the device BIOS might have been configured to disable the TPM. The event information will be similar to the following event:Ĭause of Event ID 853: Error: A compatible Trusted Platform Module (TPM) Security Device cannot be found on this computer In this case, the Event ID 853 error message indicates that the device doesn't appear to have a TPM. Event ID 853: Error: A compatible Trusted Platform Module (TPM) Security Device cannot be found on this computerĮvent ID 853 can carry different error messages, depending on the context. Review the hardware requirements for using Intune to manage BitLocker on devicesįor information about the procedure to verify whether Intune policies are enforcing BitLocker correctly, see Verifying that BitLocker is operating correctly.If there's no clear trail of events or error messages to follow, other areas to investigate include the following areas: Error message: There are conflicting group policy settings for recovery options on operating system drives.Error message: The UEFI variable 'SecureBoot' could not be read.Event ID 851: Contact manufacturer for BIOS upgrade.Event ID 853: Error: BitLocker Drive Encryption detected bootable media (CD or DVD) in the computer.Event ID 853: Error: A compatible Trusted Platform Module (TPM) Security Device cannot be found on this computer.The following sections provide more information about how to resolve the indicated events and error messages: Concentrate on the Management and Operations logs in the Applications and Services logs > Microsoft > Windows > BitLocker-API folder. To start narrowing down the cause of the problem, review the event logs as described in Troubleshoot BitLocker. The Intune portal indicates whether BitLocker has failed to encrypt one or more managed devices. This article helps troubleshooting issues that may be experienced if using Microsoft Intune policy to manage silent BitLocker encryption on devices. Enforcing BitLocker policies by using Intune: known issues
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