Software troubleshooting desk

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

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fix NET::ERR_CERT_AUTHORITY_INVALID on Windows 10

You're browsing in Chrome or Edge and see NET::ERR_CERT_AUTHORITY_INVALID. T...

Fix Cloudflare 521 Error: SSL Configuration Steps

If you see a Cloudflare 521 error, it means Cloudflare can't establish a TCP connection to yo...

Fix Nginx Configuration Test Failed on Ubuntu

When you run nginx -t on Ubuntu and get an error, Nginx won't reload or restart....

Fix 'node-sass build failed python not found' Error

If you see node-sass build failed python not found when running npm install

Fix VS Code Git Authentication Failed: Step-by-Step Guide
You're in the middle of a push or pull in VS Code, and you get a red error: "Authenticati...

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...


    Issue queue
Sitemap
Windows Search Not Indexing New Files – Fix Guide
Git Non-Fast-Forward Push Error Fix
Windows 10 Chrome Startup Crash Troubleshooting
How to Resolve Git Unrelated Histories Error
Fix Chrome Sync 'Sign In Again' Error
npm ENOENT package.json Error in Subfolder Fix
Fix Windows Explorer Keeps Restarting in Safe Mode
npm package.json Not Found – Wrong Directory Fix
Troubleshoot Cloudflare Origin Cert Permission Errors
Reduce Chrome Memory Usage Without Restart
Cloudflare SSL Full Strict Troubleshooting Steps
How to Restart Windows Search Indexing Service
Desk note

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