Fix Git 'index.lock file exists' Error
When you see the error fatal: Unable to create 'path/.git/index.lock': File exists....
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesHow to Fix Nginx Redirect Loop from HTTP to HTTPS
If you're seeing an infinite redirect loop when trying to force HTTPS in nginx, the browser u...
Understanding Git Merge Conflict Markers: A Practical Guide
When you merge branches in Git, you may encounter conflict markers in your files. These markers s...
Chrome Startup Crash on Windows 11: Fixes That Work
You click the Chrome icon on your Windows 11 PC, the window flickers, and then nothing—or you get...
How to Fix Chrome Black Screen After Turning Off Hardware Acceleration
If you turned off hardware acceleration in Chrome and now see a black screen, you're not alon...
Docker Container Exits Immediately: How to Find Logs and Fix It
You start a Docker container and it stops within seconds. The status shows "Exited (0)" o...
Issue queue
SitemapDocker Desktop Engine Troubleshooting Checklist
How to Fix Windows Update Error 0x80070005
Fix Python Virtual Environment Not Activating on Mac
Enable Windows Defender Real-Time Protection via Group Policy
Docker Permission Error on Linux: Step-by-Step Fix
Remote Desktop Connection Failed 0x80004005 Guide
Understanding DNS Probe NXDOMAIN and Server Not Found
Fix Windows Defender Blocked by Another Antivirus
Fix VS Code Git Authentication Failed: Step-by-Step Guide
Chrome Extensions Grayed Out? Troubleshooting Guide
Resolve npm Build Failure from Node Version Mismatch
VS Code Workspace Save Permission Error Fix
How to Fix Windows Update Error 0x80070005
Fix Python Virtual Environment Not Activating on Mac
Enable Windows Defender Real-Time Protection via Group Policy
Docker Permission Error on Linux: Step-by-Step Fix
Remote Desktop Connection Failed 0x80004005 Guide
Understanding DNS Probe NXDOMAIN and Server Not Found
Fix Windows Defender Blocked by Another Antivirus
Fix VS Code Git Authentication Failed: Step-by-Step Guide
Chrome Extensions Grayed Out? Troubleshooting Guide
Resolve npm Build Failure from Node Version Mismatch
VS Code Workspace Save Permission Error Fix