Event Id 624 Smart Card Service [portable]

wevtutil set-log Microsoft-Windows-SmartCard-Audit/Authentication /enabled:true wevtutil set-log Microsoft-Windows-SmartCard-Operational /enabled:true

If a user is experiencing issues with smart card login or certificate authentication, check the timeline around Event ID 624: event id 624 smart card service

If you don't use a smart card but see these errors, a virtual device or NFC reader might be the cause. Open (Win + X). Expand Smart card readers . it might mean:

If you see this event near Smart Card issues, it might mean: event id 624 smart card service