Fix Windows Security App Not Starting on Windows 11
You click the Windows Security icon or try to open it from Settings, but nothing happens. The app...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Chrome Certificate Error: Invalid Authority SSL Certificate
If Chrome shows 'Your connection is not private' with 'NET::ERR_CERT_AUTHORITY_INVALI...
How to Fix Windows Update Error 0x80070005
Windows Update error 0x80070005 usually means the update process lacks necessary permissions. It ...
How to Set Node Version for a Project
When working on multiple projects that require different Node.js versions, you may encounter erro...
Fix 'python command not found' After Windows Upgrade
After upgrading Windows 10 to 11 (or a major feature update), many users find that typing p...
Fix VS Code Source Control Not Detecting Changes After Branch Switch
After switching branches in Git, VS Code's Source Control view sometimes stops showing change...
Issue queue
SitemapWindows Security App Configuration Error Fix
How to Fix Chrome Extensions That Won't Load
Docker Container Killed by OOM: Diagnosis
Why Python Virtual Environment Won't Activate After Install
How to Resolve Git Merge Conflicts on the Same Line
Fix Git 'index.lock' File Exists Error in IntelliJ
VS Code Network Drive Permission Error Fix
Python venv Not Working on Windows 10: Common Fixes
Troubleshooting 'Cannot Access Shared Folder' on Windows
Resolve Windows Security App Permission Problems
Docker Compose Port Mapping Troubleshooting
How to Resolve Defender Configuration Error
How to Fix Chrome Extensions That Won't Load
Docker Container Killed by OOM: Diagnosis
Why Python Virtual Environment Won't Activate After Install
How to Resolve Git Merge Conflicts on the Same Line
Fix Git 'index.lock' File Exists Error in IntelliJ
VS Code Network Drive Permission Error Fix
Python venv Not Working on Windows 10: Common Fixes
Troubleshooting 'Cannot Access Shared Folder' on Windows
Resolve Windows Security App Permission Problems
Docker Compose Port Mapping Troubleshooting
How to Resolve Defender Configuration Error