What does NTSTATUS 0xC0290026 (STATUS_TPM_INVALID_POSTINIT) mean?

 
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STATUS_TPM_WRONG_ENTITYTYPE STATUS_TPM_INAPPROPRIATE_SIG

STATUS_TPM_INVALID_POSTINIT

Startup ordering, not ordinary command syntax

STATUS_TPM_INVALID_POSTINIT is a TPM 1.2 sequencing result. It identifies a command received in the wrong relationship to TPM initialization and a subsequent startup. The important clue is lifecycle order: even valid command parameters can be rejected when the module has not reached the required state.

This commonly points to firmware, driver, suspend/resume, emulator or legacy stack behavior rather than to a user credential. A modern TPM 2.0 path has its own startup model, so record the TPM version and the exact software layer before interpreting this code as a generic initialization failure.

What to establish before changing state

  • Capture boot, resume and TPM driver events around the first failure.
  • Identify the TPM generation and command path instead of mapping the code directly onto a TPM 2.0 application error.
  • Reproduce after a controlled cold boot only after preserving recovery material for TPM-backed protection.

References


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