Software troubleshooting desk

Practical fixes for tool errors, setup blocks, and workflow issues.

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Git index.lock File Exists Even After Deleting: Fixes

You delete the .git/index.lock file, but Git still says it exists. This can happen d...

Fix Cloudflare SSL Full Strict Permission Denied Error

If you're using Cloudflare's SSL/TLS encryption mode set to Full (strict) and suddenly se...

Fix Windows Update Error 0x80070005 (Service Not Starting)

When Windows Update fails with error 0x80070005, the underlying message often points to a service...

Node.js Garbage Collection Tuning to Avoid Heap Out of Memory

If your Node.js process crashes with a FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed -...

Docker Prune Not Freeing Enough Space: Practical Fixes
You run docker system prune -a expecting a big space recovery, but the freed space i...

Cloudflare Error 521: Web Server Down Checklist
Cloudflare error 521 means your origin web server refused the connection. This is not a Cloudflar...


    Issue queue
Sitemap
Chrome Extensions Broken After Update: How to Fix
How to Resolve Cloudflare 521 from Server Overload
Fix Git Non-Fast-Forward Rejection
Fix 'Permission Denied' When Deleting Files in VS Code
Nginx Upstream Connection Refused Timeout Fix
Fix Stuck Git Lock File Error
How to Fix Nginx Redirect Loop 302 Errors
Fix Docker Build Context Canceled on Network Drive
How to Stop a Blue Screen Loop After Windows 11 Update
Fix ERR_CONNECTION_RESET After Chrome Update
Windows Update Service Permission Denied Fix
Fix Nginx Configuration Test Failed
Desk note

    Troubleshooting paths
Home
Windows FixesmacOS HelpBrowser IssuesOffice ToolsDeveloper ToolsCloud SoftwareSecurity ToolsBackup RecoveryNetwork ToolsDatabase ToolsAI ToolsProductivity AppsCLI ErrorsDocker KubernetesEmail ClientsFile Utilities