⚠️ 2 verified solutions available for Error 1433 — Last updated 2026-03-09
Error 1433 📋

Fix ERROR_SETCOUNT_ON_BAD_LB — Windows Error Code 1433

Error 1433 (ERROR_SETCOUNT_ON_BAD_LB) is a Windows Security & Privileges error that occurs when lb_setcount sent to non-lazy list box.. This guide provides step-by-step solutions to resolve this issue.

🏷️ Code: 1433 📛 ERROR_SETCOUNT_ON_BAD_LB 📅 Updated: 2026-03-09 ⏱️ 2 Solutions
Quick Fix

Run as Administrator: Right-click the application → 'Run as administrator'

👇 See all 2 solutions below
🐞 Auto-Fix Script for Error 1433

💡 What is Error 1433?

Windows System Error Code 1433, known as ERROR_SETCOUNT_ON_BAD_LB, is a Security & Privileges error that occurs during security, authentication, and user privileges. The error indicates that: LB_SETCOUNT sent to non-lazy list box. When this error is encountered, the Windows operating system was unable to complete the requested operation within the security services subsystem. The error code 1433 is returned by the GetLastError() function and provides developers with a specific identifier to diagnose the root cause of the failure. The symbolic name ERROR_SETCOUNT_ON_BAD_LB maps directly to this numeric code and is commonly referenced in Microsoft documentation, developer forums, and system logs. Understanding this error and its context within security, authentication, and user privileges is essential for effective troubleshooting.

⚠️ Common Causes

  • System resource conflict: LB_SETCOUNT sent to non-lazy list box.
  • User account lacks required permissions
  • Group Policy restricts access
  • Authentication credentials expired

Step-by-Step Solutions

1 Run as Administrator
  1. Right-click the application → 'Run as administrator'
  2. If Error 1433 (ERROR_SETCOUNT_ON_BAD_LB) resolves, it's a permissions issue
  3. For permanent fix, right-click → Properties → Compatibility → check 'Run as administrator'
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Show Advanced Solutions (1 more)
2 Check User Account Permissions
  1. Open Computer Management (compmgmt.msc)
  2. Navigate to Local Users and Groups → Users
  3. Verify your account is in the Administrators group
  4. If not, add it and log off/on

🎬 Video Tutorials

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How to fix Error 1433 (Setcount On Bad Lb)
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💻 Diagnostic Command

Run this PowerShell command to find related events in your system log:

Get-EventLog -LogName System -Newest 20 | Where-Object {$_.Message -like "*1433*" -or $_.Message -like "*ERROR_SETCOUNT_ON_BAD_LB*"} | Format-List

💡 Open PowerShell as Administrator, paste the command above, and press Enter.

🛡️ Prevention Tips

  • Apply least-privilege principle
  • Audit user accounts regularly
  • Keep security policies and AV updated
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Last updated: 2026-03-09
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Based on Official Microsoft Documentation
Solutions Tested on Windows 10 & 11
Error codes sourced from Microsoft Win32 SDK. Updated 2026-03-09.
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