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STATUS_TPM_NO_NV_PERMISSION
STATUS_TPM_NO_NV_PERMISSION is a Windows NTSTATUS value in the TPM facility. For STATUS_TPM_NO_NV_PERMISSION, it belongs to the TPM 1.2 error family and is normally surfaced through the Windows TPM stack, such as TPM Base Services, rather than by ordinary file, registry or network APIs.
TPM NV storage is controlled by attributes and authorization rules on each NV index. This status indicates that the requested read, write, define or release operation is not permitted by those TPM rules.
This is more specific than a Windows access-denied condition. The decision can depend on owner authorization, index authorization, locality restrictions, physical-presence rules and whether the index has already been locked.
Diagnostic focus
- Identify the NV index and operation type before treating the error as a generic permission problem.
- Query the NV public attributes and compare them with the command being submitted.
- Check for write/read locks and locality restrictions before retrying with different Windows process privileges.
References for STATUS_TPM_NO_NV_PERMISSION
- TCG: TPM 1.2 Main Specification
- Microsoft: TPM Base Services
- Microsoft: NTSTATUS values
- TCG: TPM Main Part 1, NV storage design principles
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