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

Fixing Cloudflare 521 Error: Enable Origin Pull Setup

If you see a Cloudflare 521 error, it means Cloudflare can't connect to your origin server. O...

Fix Git Push Rejected Non Fast Forward Error

How to Fix ERR_NAME_NOT_RESOLVED via Router Settings

If you see ERR_NAME_NOT_RESOLVED in Chrome, your browser can't translate the...

How to Fix Windows Update Error 0x80070002 by Resetting Components

If you see error 0x80070002 when trying to run Windows Update, the system often cannot find or re...

Fix VS Code Source Control Not Detecting Changes in Subfolder

You open VS Code, see changes in the root folder, but the Source Control panel shows nothing for ...

Fix Cloudflare Wildcard Subdomain Not Working

If you've set up a wildcard DNS record in Cloudflare (e.g., *.example.com) but s...