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STATUS_FVE_ENH_PIN_INVALID
Meaning and context of STATUS_FVE_ENH_PIN_INVALID
This status belongs to the TPM-and-enhanced-PIN startup path. An enhanced PIN may use more than the numeric character set, but it depends on the related policy and on a preboot input environment that can accept the chosen characters.
Check the configured protector type and the applicable enhanced-PIN policy before assuming that a remembered character sequence is valid for preboot. Keyboard layout, firmware input behavior, and a policy change can matter here in ways that do not affect a normal Windows sign-in password.
Use the approved recovery method if the startup protector cannot release the key, then compare the current PIN policy and boot configuration with the documented deployment baseline. Do not remove every protector before recovery information has been verified.
BitLocker FAQ | manage-bde protectors | TCG TPM specification
Native status interpretation
STATUS_FVE_ENH_PIN_INVALID is 0xC0210031, an NTSTATUS error value. AllStat describes it as “The BitLocker encryption key could not be obtained from the Trusted Platform Module (TPM) and enhanced PIN. Try using a PIN containing only numerals.”
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