Checklists for software errors, setup, and tool workflows.

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DNS Probe Finished NXDOMAIN: Fix When ipconfig /flushdns Fails

You're browsing normally and suddenly Chrome shows "DNS_PROBE_FINISHED_NXDOMAIN". You...

Chrome Extensions Not Loading from Web Store: Fix Guide

You click “Add to Chrome” on the Web Store, but nothing happens, or the extension never appears. ...

Fix Git 'index.lock' Error in VS Code

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

Cloudflare DNS Not Propagating After SSL Certificate Change

You changed an SSL certificate in Cloudflare, but DNS changes aren't showing up. This is a co...

Fix Git Clone Connection Timed Out on GitHub Enterprise

When you run git clone on a GitHub Enterprise repository and see connection ti...

Fix Windows Update Service Not Running with DISM Restore Health
You try to run DISM /Online /Cleanup-Image /RestoreHealth and get an error saying th...