The error code 0x00000047 translates to “REF_UNKNOWN_LOGON_SESSION” on Windows systems. This error code, like 0x00000046 (DEREF_UNKNOWN_LOGON_SESSION), is uncommon for regular users and is primarily relevant for programmers debugging Windows drivers. However, I can provide a breakdown for both audiences:

For Regular Users:

This error indicates a critical issue within a driver related to user login sessions on your computer. Drivers are programs that help your system communicate with hardware devices. The REF_UNKNOWN_LOGON_SESSION error suggests a driver is trying to reference (access) a user session that the system doesn’t recognize or is invalid. This can lead to a system crash or unexpected behavior.

What can you do?

1. Update Windows and Drivers: The most common solution is to update your Windows system and all device drivers to the latest versions. Updated drivers might have bug fixes that address issues like this error. You can update them through the Settings app or Device Manager in Windows.

2. Safe Mode: If you’re encountering the error frequently, try booting your computer into Safe Mode. Safe Mode loads only essential drivers. If the error doesn’t occur in Safe Mode, it suggests a problem with a non-essential driver. You can then try to identify the problematic driver and update or disable it (if possible) to see if the error resolves.

3. Seek Technical Help: If none of the basic troubleshooting steps work, consider seeking help from a qualified technician who can diagnose the issue and identify the problematic driver. They can also advise on potential solutions or driver replacements.

For Programmers:

The REF_UNKNOWN_LOGON_SESSION error indicates a bug within a driver’s code. The driver code might be using outdated or incorrect methods for accessing session information, leading it to reference an unknown session.

• Driver Code Analysis: Analyze the driver code to identify where it attempts to access a logon session pointer. Look for situations where the driver might be using outdated methods or incorrect logic.
• Debugging Tools: Use kernel debugging tools to pinpoint the exact location within the driver code where the reference error occurs.

Additional Considerations:

• Modifying or replacing system drivers can be risky if done incorrectly. It’s recommended to proceed with caution or seek professional help if you’re not comfortable with driver troubleshooting.
• While uncommon for regular users, this error code can sometimes appear due to hardware malfunctions (less likely). If updating drivers and troubleshooting don’t resolve the issue, a technician can perform hardware diagnostics to rule out any underlying equipment problems.

Remember: Keeping your system and drivers updated can help prevent encountering such errors. If you suspect a driver issue and are not comfortable troubleshooting yourself, seeking professional help is a good option.