Software troubleshooting desk

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

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fix 'Port Already in Use' Error in Windows Terminal PowerShell

When you try to start a local server in Windows Terminal PowerShell and see port already in...

Windows Activation SSL Certificate Error Checklist
When you see an SSL certificate error during Windows activation—typically a message like "An ...

Nginx 502 Bad Gateway: PHP-FPM Fix Guide
Seeing a 502 Bad Gateway error from Nginx usually means it can't reach PHP-FPM. This is common af...

Fix Windows Terminal Proxy Error: Connection Refused
If you see 'connection refused' when using Windows Terminal behind a proxy, the terminal is likel...

Windows Defender Network Error Checklist: Step by Step
When Windows Defender fails to update or connect, you'll often see a network error message. This ...

Reset DNS Cache Using Command Prompt Not Working: Fixes
You open Command Prompt as administrator, type ipconfig /flushdns, and press Enter. ...


    Issue queue
Sitemap
Microsoft Store DNS Reset Guide
Windows Defender Path Not Found Error Fix
How to Set Windows Update to Pause on Metered Connections
How to Fix Task Scheduler After Windows Update
How to Fix Activation Not Starting After Windows Update
Chrome Profile Error: How to Fix It
Microsoft Teams High CPU Usage: Step-by-Step Checklist
Best Windows Update Settings for Gaming Performance
Fix Windows Security File Locked Error
Task Scheduler Setup for Automatic Backups: Step-by-Step Guide
Resolving Cloudflare Full Strict SSL Certificate Issues
Solving Outlook 504 Server Timeout Errors
Desk note

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