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 notesFixing Python Memory Errors When Processing Large Files on 64-bit
If you're hitting a MemoryError in Python while reading or processing a large fi...
How to Re-enable IntelliSense in VS Code When It's Disabled
If IntelliSense suddenly stops working in Visual Studio Code—no suggestions pop up as you type, o...
How to Fix ERR_CONNECTION_RESET in Chrome Safe Mode
If you're seeing ERR_CONNECTION_RESET in Chrome, it usually means the connection...
Fix Windows Security App Blocked by Antivirus
You open Windows Security (formerly Windows Defender) only to see an error or blank screen becaus...
Fix 'Python' Command Not Found in VS Code Terminal on Windows
When you open the VS Code terminal on Windows and type python, you might see &...
Issue queue
SitemapHow to Fix Chrome SSL Certificate Error Caused by Wrong System Clock
Nginx Upstream Connection Refused in Docker: How to Fix
Resolving Permission Denied for Cloudflare Origin Cert
Fix 'node-sass build failed python not found' Error
Windows 11 Network Reset No Internet Fix
Chrome Certificate Authority Invalid Fix for Windows
Fix DNS Probe Finished NXDOMAIN After Flushdns Fails
Chrome Crashing on Startup from Malware: Fix
Windows Explorer Crashing? Diagnostic Steps for Power Users
How to Fix Nginx Upstream Connection Refused
Git Changes Not Appearing in VS Code: Solutions
Chrome ERR_CONNECTION_RESET After Update: How to Fix
Nginx Upstream Connection Refused in Docker: How to Fix
Resolving Permission Denied for Cloudflare Origin Cert
Fix 'node-sass build failed python not found' Error
Windows 11 Network Reset No Internet Fix
Chrome Certificate Authority Invalid Fix for Windows
Fix DNS Probe Finished NXDOMAIN After Flushdns Fails
Chrome Crashing on Startup from Malware: Fix
Windows Explorer Crashing? Diagnostic Steps for Power Users
How to Fix Nginx Upstream Connection Refused
Git Changes Not Appearing in VS Code: Solutions
Chrome ERR_CONNECTION_RESET After Update: How to Fix