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 notesFix Git Clone Connection Timed Out Due to Proxy Settings
You run git clone https://github.com/example/repo.git and after a long pause you get...
Enable Wildcard Subdomain in Cloudflare: Step-by-Step
If you need all subdomains (like *.example.com) to point to the same server, a wildc...
Fix Docker Volume Permission Denied chown Errors
You mount a volume into a container, run a command that changes file ownership (e.g., chown...
Prevent Git Index Lock File Creation: Practical Fixes
If you see fatal: Unable to create 'path/to/.git/index.lock': File exists., ...
Fix Windows Defender Real-Time Protection Configuration Error
You open Windows Security and see a message that real-time protection is turned off or has a conf...
Issue queue
SitemapTroubleshooting Git SSL Certificate Verification Failure
How to Fix npm install Permission Denied with nvm
Windows 11 Upgrade Hangs at 99%: Troubleshooting Guide
Docker Container Stops Right After Starting: Entrypoint Fix
Stop Nginx Infinite Redirect Loop
How to Stop Chrome Status Access Violation Error
Windows Explorer Keeps Restarting After Software Install – Fix
Windows 10 Can't Access Shared Folder: Fixes
Docker Compose Env Var Not Refreshing? Fix It
How to Fix Windows Explorer Error 0xc0000005 on Restart
Chrome Task Manager: Find and Kill Memory Hogs
Docker Login Access Denied: Common Fixes
How to Fix npm install Permission Denied with nvm
Windows 11 Upgrade Hangs at 99%: Troubleshooting Guide
Docker Container Stops Right After Starting: Entrypoint Fix
Stop Nginx Infinite Redirect Loop
How to Stop Chrome Status Access Violation Error
Windows Explorer Keeps Restarting After Software Install – Fix
Windows 10 Can't Access Shared Folder: Fixes
Docker Compose Env Var Not Refreshing? Fix It
How to Fix Windows Explorer Error 0xc0000005 on Restart
Chrome Task Manager: Find and Kill Memory Hogs
Docker Login Access Denied: Common Fixes