Software troubleshooting desk

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

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fix Docker Nginx 502 Bad Gateway Upstream Error

When running Nginx as a reverse proxy in Docker, a 502 Bad Gateway error with 'upstream' ...

Recover Lost Changes After Git Detached HEAD

You've made several edits, then checked out an old commit or tag, and now Git says you're...

Fix Windows 11 Installation Assistant Stuck at 99% Due to Network Issues

You're running the Windows 11 Installation Assistant, it downloads happily up to 99%, then si...

Fix Docker Build Context Canceled on Network Drive

You're running docker build from a network drive (NAS, SMB, NFS, or mapped drive...

Fix Error 0x800f081f in Windows 11: Step-by-Step Guide

Error 0x800f081f typically appears when you try to add a Windows feature (like .NET Framework 3.5...

How to Fix Git index.lock File Exists Error on Mac

If you're working with Git on a Mac and see the error fatal: Unable to create '/pat...


    Issue queue
Sitemap
Fix 0x800f081f When Updating Windows 10
Resolve VS Code Source Control Not Detecting Edits
Antivirus Blocking DNS? Fix NXDOMAIN Error
Troubleshooting Cloudflare SSL Full Strict Mode
How to Fix Windows Update Error 0x80070002
Resolve Error 0x80070002 by Freeing Up Disk Space
Fix Windows 11 Error 0x80070005 (Access Denied)
Fix Python Memory Errors on Mac with Large Files
Git index.lock Error: How to Fix It
How to Fix Pipenv Dependency Version Clashes
How to Stop Chrome from Crashing on Windows 11
Fix Chrome Certificate Error: Invalid Authority SSL Certificate
Desk note

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