Logging Minidriver Behavior

Should errors occur in the use of the YubiKey as a PIV Smart Card with YKMD, error logging can be enabled on the local computer using the registry. Once enabled, log files are created per running process in C:\Logs. See Smart Card Basic Troubleshooting for additional troubleshooting steps.

• Key: HKEY_LOCAL_MACHINE\SOFTWARE\Yubico\ykmd
• Value: DebugOn (DWORD) - 1 enables error logging.

Note

Refer to md_config-registry.rst for additional registry settings.