Software troubleshooting desk

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

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fix Cloudflare Origin Certificate Permission Denied Error

You've set up a Cloudflare origin certificate on your server, but now you're seeing a ...

Fix Firefox Secure Connection Failed Error (Mozilla)

When Firefox shows 'Secure Connection Failed' and a message like MOZILLA_PKIX_ERROR_<...

Chrome Certificate Error: Not Secure Site Workaround
You're trying to reach a site and Chrome shows a full-page warning: “Your connection is not p...

Docker Compose Environment Variable from Shell Not Working: Fixes
You set an environment variable in your shell, but Docker Compose ignores it. This is a common pi...

Windows 11 Installation Assistant Stuck at 99% Disk Space
You’re running the Windows 11 Installation Assistant, it gets to 99%, and then sits there. The pr...

Fix Nginx Upstream Connection Refused Timeout Error
When Nginx returns 502 Bad Gateway or logs upstream connection refused timeout...

Issue queue Sitemap Fixing Cloudflare 521 Error: Origin Unreachable Fixing the 'remote origin already exists' Error for GitLab Fix pip Install Permission Error on macOS Windows Update 0x80070005 Permissions Fix Troubleshooting VS Code PowerShell Terminal Not Starting Troubleshoot Chrome Extensions Not Saving Config How to Fix Windows Update Error 0x800f081f Fix Node Sass Error After Node.js Update Troubleshoot Windows Defender Real-Time Protection Windows Defender Real-Time Protection Not Working? Fix It Here Fix Cloudflare DNS Not Propagating to All Nameservers Windows Shared Folder Access Error: Advanced Sharing Settings Fix Desk note Troubleshooting paths Home Windows FixesmacOS HelpBrowser IssuesOffice ToolsDeveloper ToolsCloud SoftwareSecurity ToolsBackup RecoveryNetwork ToolsDatabase ToolsAI ToolsProductivity AppsCLI ErrorsDocker KubernetesEmail ClientsFile Utilities