Software troubleshooting desk

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

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Nginx Upstream Connection Refused: Diagnosis and Fixes

When Nginx returns a 502 Bad Gateway or logs "upstream connection refused", it means Ngin...

Python Virtual Environment Not Activating: Common Fixes

You run source venv/bin/activate (or venv\Scripts\activate on Windows) ...

Fix Windows Search Indexing Service Not Running

If Windows Search stops returning results or the search box shows no activity, the indexing servi...

Fix Chrome Access Violation Error on Mac

If you see an "access violation" error in Chrome on your Mac, it usually means the browse...

Python Virtual Environment Not Activating on Ubuntu: Fixes

You've created a Python virtual environment on Ubuntu, but when you run source venv/bin...

Windows Defender Real-Time Protection Troubleshooting Checklist
If Windows Defender real-time protection fails to turn on or keeps turning off, you may see warni...


    Issue queue
Sitemap
Fix Permission Denied on chmod in VS Code Terminal
Docker Compose Port Mapping Not Working: Fixes
Fix Git Detached HEAD State in Visual Studio Code
VS Code IntelliSense Broken in WSL – How to Fix
How to Fix Windows Update Error 0x800f081f
How to Fix 'Python Is Not Recognized' on Windows
PM2 Node.js Memory Limit Fix Guide
Chrome Extensions Broken? Reset Chrome to Restore Them
How to Fix ERR_CONNECTION_RESET in Chrome on Mac
Fix Docker Compose Port in Use Error
Python pip Permission Denied: Safe Fixes Without sudo
Fix Chrome Memory Spikes When Watching Videos
Desk note

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