Fix Git 'index.lock file exists' Error
When you see the error fatal: Unable to create 'path/.git/index.lock': File exists....
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listWhy Cloudflare DNS Changes Aren't Propagating
You updated a DNS record in Cloudflare but the change isn't showing up. Visitors still see th...
Fix Docker 'No Space Left on Device' in Container
If you're seeing no space left on device errors inside a Docker container, the c...
Fix Docker Container Exits Immediately After Start
You run docker run myimage and the container stops almost instantly. This is a commo...
How to Stop Windows Explorer from Restarting
If Windows Explorer (explorer.exe) keeps restarting—your taskbar disappears and reappears, or you...
Fix Git 'index.lock file exists' Error
If you see fatal: Unable to create 'path/.git/index.lock': File exists. when...
Topic paths
Quick titles
Bluetooth Hardware Not Found on Windows 11: FixesTroubleshooting Node Version Mismatch in npmResolving Git Merge Conflicts Between Two BranchesTroubleshooting Docker Container Exiting with 'not found'Reduce Chrome Memory Usage: Practical TipsFix Chrome Certificate Error Due to Antivirus InterferenceWindows 11 No Internet but WiFi Connected – Netsh FixHow to Resolve Nginx Upstream Connection Refused