Checklists for software errors, setup, and tool workflows.

Fix Windows Update Service Not Starting Automatically

If Windows Update stops working, the most common reason is that the Windows Update service isn...

DNS Probe Finished NXDOMAIN: Fix When ipconfig /flushdns Fails

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

Fix NET::ERR_CERT_AUTHORITY_INVALID via Chrome Enterprise Policy

If you see NET::ERR_CERT_AUTHORITY_INVALID in Chrome on a managed device, the is...

How to Fix Limited Connectivity on Windows 11 Wi-Fi

You connect to Wi-Fi but see "Limited connectivity" or "No internet, secured." Yo...

Debugging Jest Tests in VS Code: Breakpoints Not Hit

You set a breakpoint in a Jest test file, start debugging, and the test runs to completion but th...

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

Symptom

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