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Latest Troubleshooting Guides

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Troubleshooting

Nginx Upstream Connection Refused: Diagnosis and Fixes

When Nginx returns a 502 Bad Gateway or logs "upstream connection refused", it means Ngin...

Troubleshooting

How to Reinstall Windows Security App (Microsoft Defender)

If the Windows Security app (Microsoft Defender) is missing, crashing, or not opening, reinstalli...

Troubleshooting

Fix Windows 11 Update Stuck at 0% with Service Not Running

You click Check for updates, see 0% for ages, and maybe an error like 'Windows Update service...

Troubleshooting

How to Fix VS Code Source Control Not Detecting Changes

You open VS Code, edit a file, and expect to see it in the Source Control view. But the panel sta...

Troubleshooting

Fix Docker Compose Port Already Allocated Error

When running docker-compose up, you may see an error like Error starting userl...


                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix Windows Update Service Not Running in Event Viewer
                                
You open Event Viewer to check for errors after a failed Windows Update, and you see an event sta...



        
            
                
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                    Support Note
                     Test fixes in a non-critical profile first, keep backups for configuration files, and record exact error messages before changing settings.