Software troubleshooting desk

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

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fix Nginx Upstream Connection Refused in Proxy Pass

When Nginx returns a 502 Bad Gateway or logs upstream connection refused

Windows Security App Not Opening: Practical Fixes
If the Windows Security app won't open—clicking the icon does nothing, or it crashes immediat...

How to Increase Python Requests Timeout
When your Python script makes HTTP requests, you might see timeout errors like requests.exc...

Fix VSCode Git Authentication Failed: Reset Credentials
If you see a "Git authentication failed" error in Visual Studio Code, it usually means yo...

How to Fix Windows Update Error 0x80070005
Windows Update error 0x80070005 usually means the update process lacks necessary permissions. It ...

Fix npm run build Failures After npm install
After running npm install, you may find that npm run build fails with c...


    Issue queue
Sitemap
VS Code Permission Denied: Causes and Fixes
Fix Python Dependency Conflict Error Code 1
Chrome Sync Not Working on Mac: Fixes That Actually Work
Fix Cloudflare 522 Error from Plugin Conflicts
Fix DNS Probe Finished NXDOMAIN After Flushdns Fails
Windows 11 Blue Screen After Update? Try Compatibility Mode
Git Push Rejected: Non-Fast-Forward Error Fix
Windows 11 Update Service Stopped? Here's How to Restart It
How to Enable Windows Defender Real-Time Protection via Command Line
Nginx Upstream Connection Refused Fix Guide
Second Monitor Taskbar Icons Not Showing? Try These Steps
How to Fix Git Merge Conflicts in Binary Files
Desk note

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