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Latest Troubleshooting Guides

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Troubleshooting

Fix High CPU Usage by MsMpEng.exe (Windows Defender)

If your system feels sluggish and Task Manager shows MsMpEng.exe using 30–100% CPU, Windows Defen...

Troubleshooting

Fix 'Java JDK Not Recognized' After Update

After updating your Java Development Kit (JDK), you might see errors like 'java' is not rec...


                    
                    
                        
                            
                            
                                Troubleshooting
                                Docker Compose Network Not Working: Common Fixes
                                
You've defined services in a docker-compose.yml file, but containers can't reach each other by se...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                GitHub Actions Runner Not Connecting: Fixes That Work
                                
You've set up a self-hosted GitHub Actions runner, but it never appears online or shows a "runner...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                Docker Compose Build: No Cache vs Cache – When to Use Each
                                
If you've run docker compose build and noticed it's using old dependencies or taking...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix Microsoft Teams Token Expired Authentication Failed Error
                                
You're signed into Microsoft Teams and suddenly get a message saying your token has expired or au...



        
            
                
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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.