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WINBIO_E_CRED_PROV_NO_CREDENTIAL
WINBIO_E_CRED_PROV_NO_CREDENTIAL indicates a credential lookup failure in the biometric sign-in path. It is distinct from a bad biometric sample: the provider cannot locate the requested stored credential, so repeatedly scanning the same finger does not create the missing credential state.
Verify identity and credential state
- Call
WinBioGetCredentialStatefor the sameWINBIO_IDENTITYand credential type when that API is available to the component. - Confirm that enrollment and credential provisioning completed for the account that is actually being authenticated.
- Do not assume that a biometric template in an application-specific private database is a Windows logon credential.
The system sensor pool is used for Windows authentication scenarios and associates user identities with biometric templates, while private pools can use application-managed GUID identities and databases. When this error appears, log the identity type, pool, and credential operation. Re-enrollment may be relevant only after confirming that the expected Windows credential is genuinely absent.
WinBioGetCredentialState · Sensor pools
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