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TPM_E_PCP_TICKET_MISSING
TPM_E_PCP_TICKET_MISSING means the Platform Crypto Provider expected a ticket required to authorize use of a TPM key, but no suitable ticket was supplied.
What to check
- Review the operation sequence that obtains and consumes the ticket; a ticket normally belongs to a specific key, challenge, or policy state.
- Do not reuse tickets across devices, keys, users, or stale sessions.
- Check whether the provider context was recreated between ticket issuance and key use.
Microsoft: TPM key attestation
Microsoft: CNG key storage providers
Microsoft: TPM and PCP error codes
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