What does HRESULT 0x8029011D (TPMAPI_E_TCG_INVALID_DIGEST_ENTRY) mean?

 
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TPMAPI_E_TCG_INVALID_DIGEST_ENTRY

TPMAPI_E_TCG_INVALID_DIGEST_ENTRY is a Windows TPM API result. It indicates that a digest recorded in a Trusted Computing Group event-log entry does not match the data it is expected to represent.

What to check for TPMAPI_E_TCG_INVALID_DIGEST_ENTRY

  • Treat the log as untrustworthy for the failed validation and preserve it for investigation.
  • Check hash algorithm selection, event data boundaries, and log integrity before recomputing the digest.
  • Investigate repeated mismatches as a platform, firmware, or measured-boot integrity issue.

Microsoft documentation for TPMAPI error codes


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