How to Fix Git 'index.lock' File Exists Error
When you see fatal: Unable to create 'path/.git/index.lock': File exists., G...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesWindows Update Service Not Running in Windows 11: Fix It
If Windows Update won't start and you see an error like "Windows Update service is not ru...
Fix Chrome Certificate Error Invalid Authority on Mac
You're browsing in Chrome on a Mac and suddenly see a warning: Your connection is not...
Clear Windows Explorer Cache to Fix Restarting Issues
If Windows Explorer keeps restarting unexpectedly—your taskbar disappears and reappears, or your ...
Cloudflare Origin Certificate Setup Checklist
You've set up Cloudflare but your origin server still shows SSL errors or mixed content warni...
Fix Cloudflare Origin Certificate Not Trusted by Browser
You've set up Cloudflare with an origin certificate, but browsers show a warning that the cer...
Issue queue
SitemapGit Merge Conflict Rebase Stuck: Fix Unresolved Paths
Command Line Method for Windows Defender Real-Time Protection
Fix Git Clone Connection Timed Out Due to Proxy Settings
Fix Chrome Not Responding on Startup – Practical Steps
macOS npm Build Failure: Common Fixes
Git SSL Certificate Verification Failed Local Issuer
Fix Windows Defender Blocked by Third-Party Antivirus
Fix DNS Probe Finished NXDOMAIN on Router: Step-by-Step
How to Fix Cloudflare SSL Full Strict Errors
Reduce Chrome RAM Usage: Step-by-Step Fix
How to Resolve Git Non-Fast-Forward and Permission Denied
Guide to Docker Disk Usage and Pruning
Command Line Method for Windows Defender Real-Time Protection
Fix Git Clone Connection Timed Out Due to Proxy Settings
Fix Chrome Not Responding on Startup – Practical Steps
macOS npm Build Failure: Common Fixes
Git SSL Certificate Verification Failed Local Issuer
Fix Windows Defender Blocked by Third-Party Antivirus
Fix DNS Probe Finished NXDOMAIN on Router: Step-by-Step
How to Fix Cloudflare SSL Full Strict Errors
Reduce Chrome RAM Usage: Step-by-Step Fix
How to Resolve Git Non-Fast-Forward and Permission Denied
Guide to Docker Disk Usage and Pruning