Fix Windows Security Connection Refused Due to Antivirus Blocking
You try to open Windows Security or run a scan, and get a 'connection refused' error. Often this ...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listHow to Fix Microsoft Store Error 404 (Not Found)
If you see a 404 error when trying to open an app or page in the Microsoft Store, it usually mean...
How to Fix 'Outlook Module Not Found' with Office Repair
If you see an error like "Outlook module not found" when starting Microsoft Outlook, it usually m...
Fix 504 Gateway Timeout in Windows Security After Update
If you see a 504 Gateway Timeout error when opening Windows Security after a recent update, it us...
Fix Task Scheduler Connection Timeout Due to Firewall
If your scheduled tasks fail with a connection timeout error, the firewall might be blocking the ...
Outlook IMAP Connection Failure: Step-by-Step Fix
If Outlook shows "cannot connect to IMAP" or similar errors, it usually points to a server, port,...
Topic paths
Quick titles
Microsoft Store Not Downloading Apps in Windows 11: FixesTroubleshooting Chrome Extension Startup ErrorsWindows Search High CPU Fix When Not IndexingHow to Stop Command Prompt Crashing During SFC and DISMWindows Security Blocked by Antivirus – FixHow to Resolve Defender Update Hanging at 0%Access Denied When Clearing Cache in Command PromptHow to Fix Group Policy Invalid Configuration Error in PowerShell