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Latest Troubleshooting Guides

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Troubleshooting

Fix Missing Windows Security After Update

After a Windows update, you might find that Windows Security (formerly Windows Defender) is missi...

Troubleshooting

Fix Microsoft Store 504 Error After Windows Update

After a Windows update, you might see a 504 error when opening Microsoft Store. This usually mean...

Troubleshooting

Task Scheduler Not Starting After Windows Update: How to Fix

After a Windows update, the Task Scheduler service may fail to start, either immediately or on su...

Troubleshooting

Windows Update High CPU Usage Troubleshooting Checklist

If your system feels sluggish and Task Manager shows high CPU usage from TiWorker.exe


                    
                    
                        
                            
                            
                                Troubleshooting
                                Task Scheduler Connection Refused: Firewall Fixes
                                
When Task Scheduler shows a 'connection refused' error, it usually means a firewall or network ru...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix Windows Defender Authentication Failed Error in Windows 10
                                
You see a message like 'Windows Defender Authentication Failed' when trying to open or update Win...



        
            
                
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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.