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TPMAPI_E_POLICY_DENIES_OPERATION
TPMAPI_E_POLICY_DENIES_OPERATION is a Windows TPM API result. It indicates that the active TPM, platform, or administrative policy explicitly disallows the requested operation.
What to check for TPMAPI_E_POLICY_DENIES_OPERATION
- Identify the relevant TPM policy, device-management policy, and the operation being denied.
- Verify that the caller, authorization session, PCR state, and key policy satisfy the intended rules.
- Ask the responsible administrator to change policy only when the operation is expected to be permitted.
Microsoft documentation for TPMAPI error codes
Diagnostic discriminator: Inspect the active TPM policy and the exact operation it authorizes. This result means policy explicitly denies the operation; changing command serialization alone is not relevant.
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