What does HRESULT 0x8028005A (TPM_E_BADCONTEXT) mean?

TPM_E_BADCONTEXT

TPM_E_BADCONTEXT: the TPM context blob or context reference is invalid for the current TPM state

TPM_E_BADCONTEXT (0x8028005A) identifies a narrow contract boundary: the TPM context blob or context reference is invalid for the current TPM state. Do not replace it with a generic subsystem failure when the symbolic result already tells you which state or input was rejected.

Evidence

capture the context blob hash, TPM reset/reboot history, resource type, handle, owner process, and the command that tries to reload/use it.

Verification

create a fresh context in the current TPM session rather than reusing a blob invalidated by reset or state change.

Technical references

• TPM fundamentals.
• TPM Base Services.