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Latest Troubleshooting Guides

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Troubleshooting

Fix Outlook Service Unavailable After Update

You open Outlook after a recent update and see “Service Unavailable” or “Cannot start Microsoft O...

Troubleshooting

Chrome Sync Error After Backup Restore: How to Fix

After restoring a Chrome backup—whether from a system backup, profile copy, or cloud restore—you ...

Troubleshooting

How to Fix Firefox Not Responding on Windows 10

Firefox becomes unresponsive on Windows 10 for various reasons—a stuck process, corrupted profile...

Troubleshooting

Fix Ubuntu APT Lock Not Released After Update

After running an update or upgrade on Ubuntu, you may see an error like E: Could not get lo...


                    
                    
                        
                            
                            
                                Troubleshooting
                                How to Fix PowerShell Rate Limit Error 429
                                
If you're using PowerShell to call REST APIs — especially Microsoft Graph, Azure, or GitHub — you...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix Windows Security Proxy 504 Gateway Timeout Configuration
                                
When Windows Security (Windows Defender) reports a 504 Gateway Timeout error through a proxy, it ...



        
            
                
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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.