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 VS Code Source Control Not Detecting Changes on Ubuntu
If you're using VS Code on Ubuntu and the Source Control panel shows no changes even after ed...
Chrome Won't Open After Update: Step-by-Step Fix
You updated Chrome, and now it won't open—no window, no error, just nothing. This is a common...
Fix Firefox Secure Connection Failed on Mac
If you see "Secure Connection Failed" in Firefox on your Mac, the browser is blocking the...
Fix Windows Defender Real-Time Protection Not Turning On After Update
After a Windows Update, you might find that Windows Defender's real-time protection is stuck ...
Windows Defender Real-Time Protection Keeps Turning Off: Fixes
You notice the Windows Security icon in the system tray shows a yellow warning. Opening it reveal...
Issue queue
SitemapGit Non Fast Forward Error: Causes and Fixes
Fix DNS Probe Finished NXDOMAIN on Router: Step-by-Step
Fix pnpm Permission Denied Errors on macOS
Fix Chrome Hardware Acceleration Black Screen on External Monitor
How to Merge a Git Detached HEAD Back to Master
Cloudflare Wildcard DNS Not Working
Windows Explorer Keeps Restarting After Login – Troubleshooting Guide
Disable Hardware Acceleration to Fix Chrome Black Screen
Resolve Git Push Rejected Error
How to Increase Git HTTP Timeout for Large Repos
How to Fix Git Push Rejected (Non-Fast-Forward) Error
Understanding and Fixing Git's Non-Fast-Forward Error
Fix DNS Probe Finished NXDOMAIN on Router: Step-by-Step
Fix pnpm Permission Denied Errors on macOS
Fix Chrome Hardware Acceleration Black Screen on External Monitor
How to Merge a Git Detached HEAD Back to Master
Cloudflare Wildcard DNS Not Working
Windows Explorer Keeps Restarting After Login – Troubleshooting Guide
Disable Hardware Acceleration to Fix Chrome Black Screen
Resolve Git Push Rejected Error
How to Increase Git HTTP Timeout for Large Repos
How to Fix Git Push Rejected (Non-Fast-Forward) Error
Understanding and Fixing Git's Non-Fast-Forward Error