Software troubleshooting desk

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

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fix Chrome Certificate Error Invalid Authority on Mac

You're browsing in Chrome on a Mac and suddenly see a warning: Your connection is not...

Python Virtual Environment Not Activating on Ubuntu: Fixes
You've created a Python virtual environment on Ubuntu, but when you run source venv/bin...

Fix Nginx 502 Bad Gateway with Docker Multiple Containers If you run Nginx as a reverse proxy in front of multiple Docker containers, a 502 Bad Gateway err...

Windows 11 Update Stuck at 0%: How to Fix with Troubleshooter You click Check for updates, it sits at 0% for ages, and the progress bar doesn't budge. This...

Fix ERR_NAME_NOT_RESOLVED on All Sites in Chrome If Chrome shows ERR_NAME_NOT_RESOLVED on every site you visit, it means your bro...

Chrome Extensions Not Loading? Reset Chrome to Fix You open Chrome, click the extensions icon, and nothing happens. Or extensions are grayed out, mi...

Issue queue Sitemap Resolving Unmerged Paths After Git Rebase Conflict Fix ERR_NAME_NOT_RESOLVED Caused by Antivirus Block How to Remove Chrome Status Access Violation Malware How to Fix Nginx Redirect Loop Errors Git LFS Push Not Working: Troubleshooting Guide How to Activate Python venv in Git Bash on Windows Fix Git Merge Conflicts When Stash Changes Are Involved Fixing Python Dependency Conflicts in Poetry Cloudflare Full Strict SSL Redirect Loop Solution VS Code terminal blank or not starting Windows 10 Troubleshooting Cloudflare 521 Error: Port 443 Blocked Fix Git SSL 'unable to get local issuer' Error Desk note Troubleshooting paths Home Windows FixesmacOS HelpBrowser IssuesOffice ToolsDeveloper ToolsCloud SoftwareSecurity ToolsBackup RecoveryNetwork ToolsDatabase ToolsAI ToolsProductivity AppsCLI ErrorsDocker KubernetesEmail ClientsFile Utilities