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

Fix Windows Defender Real-Time Protection Stuck Off in Windows 11

You open Windows Security, see real-time protection is off, click the toggle, and it turns back o...

Cloudflare SSL Full Strict: Fix Origin Certificate Errors

If you've set Cloudflare's SSL/TLS encryption mode to Full (Strict) and started seeing er...

Fix pnpm ERR! Cannot Find Module – Practical Steps

Cloudflare Wildcard Subdomain Troubleshooting Checklist

When you set up a wildcard DNS record (e.g., *.example.com) in Cloudflare, subdomain...

Chrome Certificate Error Invalid Authority: Diagnosis Checklist

When Chrome shows NET::ERR_CERT_AUTHORITY_INVALID and refuses to load a site, it...

Error 0x80070080002 Windows Update: Step-by-Step Fix

Error 0x80070002 in Windows Update usually means the update files are missing or corrupted, or th...