Knowledge base for software setup, errors, and daily tool work.

Windows 11 Taskbar Icons Missing? Fixes That Actually Work

You boot up Windows 11 and notice the taskbar icons are gone—no Start button, no search, no syste...

Fix Git 'index.lock file exists' Error

If you see fatal: Unable to create 'path/.git/index.lock': File exists. when...

How to Give VS Code Permission to Save Files

If VS Code shows a permission error when you try to save a file, the problem is usually that the ...

Fix 'package.json Not Found' After Cloning a Repository

Symptom

You clone a repository from GitHub (or another remote), change into the directory...

Fix Nginx Upstream Connection Refused Error

When Nginx returns upstream connection refused in your error logs, it means Nginx tr...

Cloudflare DNS Not Updating After Change: Fixes That Work

You change a DNS record in Cloudflare, wait, and the old IP still resolves. This is a common frus...