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Latest Troubleshooting Guides

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Troubleshooting

Fix Windows Defender Update Error 0x80070643

If you see error 0x80070643 when updating Windows Defender, it usually means the update failed du...

Troubleshooting

UFW Port Closed Despite Allow Rule: Fixes

You've added a UFW allow rule for a port, but a port scan or service test shows the port is still...

Troubleshooting

Fix Windows Defender DNS Error on Windows 11

You open Windows Security and see a warning about a DNS error, or Windows Defender cannot update ...

Troubleshooting

Fix Windows Update 504 Gateway Timeout Error

Seeing a 504 Gateway Timeout error when running Windows Update can be frustrating. This usually m...

Troubleshooting

Fix Git Pull Merge Conflict Permission Denied Errors

You run git pull and see a message about a merge conflict followed by permissi...


                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix Windows Defender Error 0x800704ec
                                
You see error 0x800704ec when opening Windows Defender or Windows Security. The message says auth...



        
            
                
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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.