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Troubleshooting

Fix Windows Defender 404 Not Found After Update

After installing a recent Windows update, some users find that Windows Defender is missing or sho...

Troubleshooting

Fix Jupyter Notebook Token Not Working on Windows

When you start Jupyter Notebook (or JupyterLab) on Windows, it often opens a browser tab asking f...

Troubleshooting

How to Fix Command Prompt Error 0xc0000142 on Windows 10

When you try to open Command Prompt (cmd.exe) on Windows 10, you might see an error: "The applica...

Troubleshooting

Where Nginx Logs 404 Errors: Location & Troubleshooting

When nginx returns a 404 Not Found, the first step is checking the error logs. This article cover...

Troubleshooting

Fixing VS Code Extension Host Termination on Remote SSH

If you're using Visual Studio Code with the Remote - SSH extension and see a message like E...


                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix Windows Security Service Not Running for Antivirus
                                
If Windows Security shows 'Service not running' or your antivirus isn't working, the underlying s...



        
            
                
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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.