| Event Id | 516 |
| Source | Microsoft-Windows-TBS |
| Description | An error occurred while communicating with the TPM. The driver returned %1. |
| Event Information | According to Microsoft : Cause : This event is logged when an error occurred while communicating with the TPM. Resolution : Repair, replace, or upgrade hardware components In order for BitLocker Drive Encryption or an application to use the Trusted Platform Module (TPM), the TPM must be compatible with applicable standards and be version 1.2 or newer. You can determine the version of TPM in the computer by searching the system event log for Event 538 from the Microsoft-Windows-TBS source, by using the Windows Management Interface (WMI) provider, the TPM Management Console (tpm.msc), or by examining the specifications provided by the manufacturer of the computer. Because the TPM is a hardware device, contact your hardware supplier or hardware support team to resolve this issue. Verify : To perform this procedure, you must have membership in Users, or you must have been delegated the appropriate authority. To verify the correct operation of TBS: Restart the computer. Verify that all applications and components that use the TPM, such as BitLocker Drive Encryption, work correctly without errors appearing on screen or in the Event log. Specifically, the following steps can verify the correct operation of BitLocker: Verify that Windows Welcome Screen, Logon Screen or Desktop appears. This indicates that BitLocker has correctly unlocked the Windows operating system volume. Log on to Windows and access any data volumes that are encrypted with BitLocker. Note: Data volumes can be configured to be automatically unlocked or to require manual unlocking. |
| Reference Links | Event ID 516 from Microsoft-Windows-TBS |
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