Fix ERR_CERT_AUTHORITY_INVALID on Localhost
When testing a local web app, you may see ERR_CERT_AUTHORITY_INVALID in Chrome or si...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Chrome Status Access Violation Registry Error
You open Chrome and see an error like STATUS_ACCESS_VIOLATION or a crash with that c...
Fix 'Python Not Recognized' Error on Windows 11
You installed Python on Windows 11, but when you type python --version in Command Pr...
Fix Windows 11 Bluetooth Not Connecting: Practical Steps
You try to connect a Bluetooth device—headphones, mouse, keyboard—but Windows 11 either doesn'...
Fix Windows Cannot Access Shared Folder: Advanced Sharing Settings
You try to open a shared folder from another PC on your network, but Windows shows an error: "...
Activate Python Virtual Environment in VS Code
You've created a Python virtual environment but can't get VS Code to use it. The terminal...
Issue queue
SitemapFix Cloudflare 522 Error from Plugin Conflicts
Resolve 0x80070002 Update Failed Error
Docker Compose Port Mapping Troubleshooting
Docker Compose Port Binding Error Fix
Windows 11 Bluetooth Permission Problem Guide
Mac Chrome NET::ERR_CERT_AUTHORITY_INVALID Solution
Docker Pull Denied: CI/CD Pipeline Fixes
Git LFS on GitHub: Setup Guide and Common Fixes
Docker Desktop Access Denied When Pulling Images
Resolve Git SSL Certificate: Unable to Get Local Issuer
Troubleshooting Docker MySQL Permission Denied on Volume
Cloudflare Wildcard DNS Propagation Fix
Resolve 0x80070002 Update Failed Error
Docker Compose Port Mapping Troubleshooting
Docker Compose Port Binding Error Fix
Windows 11 Bluetooth Permission Problem Guide
Mac Chrome NET::ERR_CERT_AUTHORITY_INVALID Solution
Docker Pull Denied: CI/CD Pipeline Fixes
Git LFS on GitHub: Setup Guide and Common Fixes
Docker Desktop Access Denied When Pulling Images
Resolve Git SSL Certificate: Unable to Get Local Issuer
Troubleshooting Docker MySQL Permission Denied on Volume
Cloudflare Wildcard DNS Propagation Fix