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Latest Troubleshooting Guides

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Troubleshooting

Fix Windows Security Connection Refused Error via Registry

If you see a connection refused error when opening Windows Security (Windows Def...

Troubleshooting

Fix Microsoft Teams 'Permission Denied' Error on Launch

You click to open Microsoft Teams, but instead of the login window, you get a 'permission denied'...

Troubleshooting

How to Fix Git SSL Certificate Problem

If you see an error like fatal: unable to access 'https://...': SSL certificate problem: un...


                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix Windows Security DNS Error Blocking Internet Access
                                
If your internet stops working and you see a Windows Security DNS error, it usually means the DNS...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix Windows Defender Crashing After Update Error 0x800704ec
                                
If Windows Defender crashes or fails to start after a recent update and you see error 0x800704ec,...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                Windows Activation 502 Bad Gateway: Troubleshooting Checklist
                                
If you're seeing a '502 Bad Gateway' error when trying to activate Windows, the problem is usuall...



        
            
                
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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.