Software troubleshooting desk

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

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Nginx Upstream Connection Refused: Diagnosis and Fixes

When Nginx returns a 502 Bad Gateway or logs "upstream connection refused", it means Ngin...

Fix 'Permission Denied' When Using mkdir in VS Code Terminal

You're working in the VS Code integrated terminal and run a mkdir command only t...

Fix Node Sass Build Failure by Upgrading Node Version

If you're seeing a build error like Module build failed: Error: Node Sass does not yet ...

Fix Nginx Configuration Test Failure on Location Directive
When you run nginx -t and see an error like [emerg] invalid location directive...

Fix Windows Update Error 0x80070002 After Update
After a Windows Update, you may see error 0x80070002. This usually means the system can't fin...

Fix Windows 11 Update Stuck at 0% – BITS Service Issues
You click 'Check for updates' in Windows 11, and it sits at 0% for minutes or hours. Ofte...


    Issue queue
Sitemap
Enable Stuck Chrome Extensions: Step-by-Step Guide
Troubleshooting Docker Private Repository Access
Resolving Git SSL Certificate Issues on HTTPS Repos
Resolving Docker 'No Space Left on Device' Error
Docker No Space Left on Device Cleanup Guide
Fixing Windows Update Error 0x80070005 and SFC Scan Issues
Windows 11 Installation Assistant Not Completing Setup: Fixes
Resolve Docker Compose Port 8080 Already in Use
How to Enable Greyed Out Defender Real-Time Protection
Fix npm install Permission Denied in VS Code Terminal
Setting Up Git LFS for Large Binary Files
How to Clear DNS Cache After Changing DNS Servers
Desk note

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