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 DNS Probe Finished NXDOMAIN After Changing DNS
After updating your DNS settings—perhaps to use Google Public DNS or Cloudflare—you might see the...
How to Fix Git Refusing to Merge Unrelated Histories
When you try to merge two Git branches that have no common commit history, Git stops you with the...
Fix Nginx 13 Permission Denied Error: Step-by-Step
You're configuring Nginx and see 13: Permission denied in the error log. This us...
Fix Windows Security App Access Denied Error
When you open Windows Security (formerly Windows Defender Security Center) and see an 'Access...
Fix Windows Update Error 0x80070005: Cannot Install Updates
You try to install Windows updates but get error 0x80070005 with the message "Cannot install ...
Issue queue
SitemapFix Chrome High RAM Usage from Hardware Acceleration
How to Fix Windows Update Error 0x800f081f
Cloudflare SSL Full Strict Not Working After Update: Fixes
Nginx Config Test Fails in Docker Container
Resolving Python's charmap Codec Error When Reading Files
Docker Desktop Engine Stopped: WSL Issue Fix
Resolving Remote Desktop Error 0x80004005
Docker Desktop Access Denied When Pulling Images
Git Detached HEAD: VS Code Troubleshooting
How to Fix Chrome DNS Error from Antivirus Blocking
Fix Chrome Crashing on Open by Disabling Extensions
Fix Git Changes Not Detected in VS Code Workspace
How to Fix Windows Update Error 0x800f081f
Cloudflare SSL Full Strict Not Working After Update: Fixes
Nginx Config Test Fails in Docker Container
Resolving Python's charmap Codec Error When Reading Files
Docker Desktop Engine Stopped: WSL Issue Fix
Resolving Remote Desktop Error 0x80004005
Docker Desktop Access Denied When Pulling Images
Git Detached HEAD: VS Code Troubleshooting
How to Fix Chrome DNS Error from Antivirus Blocking
Fix Chrome Crashing on Open by Disabling Extensions
Fix Git Changes Not Detected in VS Code Workspace