Software troubleshooting desk

Practical fixes for tool errors, setup blocks, and workflow issues.

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fix Nginx Upstream Connection Refused in Proxy Pass

When Nginx returns a 502 Bad Gateway or logs upstream connection refused

Fix 'python command not found' on Windows with Python Installed
You installed Python on Windows, but when you type python --version in Command Promp...

Fix 'Permission Denied' When Deleting Files in VS Code
You try to delete a file or folder in VS Code's Explorer, but get an error: Permission ...

How to Enable Windows Defender Real-Time Protection via Command Line
If you need to turn on Windows Defender real-time protection but can't access the Settings ap...

How to Fix Cloudflare 521 Error Due to Proxy Issues
If you see a Cloudflare 521 error, the message usually says something like “Web server is down.” ...

Fix VSCode Git Auth Failed: Expired Token
You're working in Visual Studio Code, try to push or pull, and see an error like "Git: Au...


    Issue queue
Sitemap
Fix 'Python Is Not Recognized as an Internal or External Command'
How to Force Git Merge Unrelated Branches
Speed Up Cloudflare DNS Propagation
Troubleshoot Docker Container Exit Code 0
Troubleshoot Missing IntelliSense in Remote SSH
Ubuntu pip install Permission Denied – Quick Fixes
Windows Explorer Restart Loop Safe Mode Fix
Python Requests: Connection Timeout vs Read Timeout
Fixing Node Sass Build Failures on Linux
How to Lower Chrome Memory Consumption on macOS
Docker Out of Disk Space Solutions
Why VS Code Git Ignores New .gitignore Rules
Desk note

    Troubleshooting paths
Home
Windows FixesmacOS HelpBrowser IssuesOffice ToolsDeveloper ToolsCloud SoftwareSecurity ToolsBackup RecoveryNetwork ToolsDatabase ToolsAI ToolsProductivity AppsCLI ErrorsDocker KubernetesEmail ClientsFile Utilities