You’ve previously inquired about the Win32 0x00000553 error (ERROR_LOGON_SESSION_EXISTS), and the information you received earlier is still relevant. Here’s that information again:

Understanding the Error:

• This error code indicates that you cannot initiate a new login session because a session with the same ID is already active.

Common Causes:

• Multiple Login Attempts: You might have accidentally initiated multiple login attempts, and one of them hasn’t completed or timed out yet, causing the session ID conflict.
• Previous Login Not Terminated Properly: An abnormal system shutdown or unexpected termination of a previous login session could leave a lingering session ID, preventing a new login attempt.
• Remote Desktop Session (Less Likely): In rare scenarios, if you’re using Remote Desktop and haven’t properly disconnected from a previous session, it might lead to a conflicting session ID.

Troubleshooting Steps:

Here’s how you can address the ERROR_LOGON_SESSION_EXISTS error:

• Wait and Retry:

  • Sometimes, a simple wait of a few minutes allows enough time for the conflicting session ID to expire or resolve itself. Try logging in again after a short wait.

• Restart the Computer:

  • Rebooting the computer clears out temporary system states and lingering session information. A restart can often resolve the issue by clearing the conflicting session ID.

• End Remote Desktop Sessions (if applicable):

  • If you’re using Remote Desktop, ensure you’ve properly disconnected from any previous sessions. Check for lingering remote desktop connections and terminate them if necessary.

• System Administrator Involvement (For Complexities):

  • If the error persists or you suspect a more complex issue, involving your system administrator is recommended. They can utilize advanced tools and techniques to diagnose the root cause and potentially reset session IDs if necessary.

In Summary:

The Win32 0x00000553 error (ERROR_LOGON_SESSION_EXISTS) typically occurs when a conflicting login session ID is preventing a new login attempt. By waiting a short while, restarting the computer, or properly ending remote desktop sessions (if applicable), you can often resolve the issue. If the error persists, consider involving your system administrator for further assistance.