Fix Git 'index.lock' File Exists Error in SourceTree
If you use SourceTree and see an error message like fatal: Unable to create 'path/to/.g...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Remote Desktop Connection Blocked by Firewall
When you try to connect to a remote PC using Remote Desktop (RDP) and get an error like “Remote D...
Chrome Extensions Not Loading? Try Disabling Antivirus Temporarily
You open Chrome, head to your extensions, and nothing loads—or newly installed ones disappear. On...
Git Fatal: Refusing to Merge Unrelated Histories – Workaround
You try to merge two Git branches and get this error:
fatal: refusing to merge unre...How to Fix Windows Update Service Not Running After Update
After a Windows update, you might find that the Windows Update service itself stops working. This...
How to Fix Windows 11 Installation Assistant Stuck at 99%
You're running the Windows 11 Installation Assistant, it reaches 99%, and then... nothing. Th...
Topic paths
Quick titles
How to Lower Chrome Memory Consumption on macOSChrome RAM Not Dropping After Closing TabsHow to Resolve Nginx Configuration Test File Not Found ErrorUnderstanding and Fixing Git Unrelated HistoriesFix Chrome ERR_CONNECTION_RESET ErrorFix Nginx Upstream Connection Refused in Proxy PassWSL IntelliSense Not Working in VS Code: Troubleshooting GuideHow to Configure Cloudflare SSL Full Strict