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

Fix Windows 11 Setup Stuck at 99%

You're installing Windows 11 and the progress bar hangs at 99% for a long time. This is a kno...

Fix ERR_CERT_AUTHORITY_INVALID in Chrome Incognito Mode

You open Chrome incognito and hit a warning: NET::ERR_CERT_AUTHORITY_INVALID. Th...

Fix Windows Update Error 0x80070005 by Taking Ownership

What Causes Error 0x80070005?

This error usually means Windows Update doesn't have pe...

Fix Windows Cannot Access Shared Folder: Advanced Sharing Settings

You try to open a shared folder from another PC on your network, but Windows shows an error: "...

Cloudflare 522 Error After Server Migration: Fixes That Work

If you've just migrated your website to a new server and now see a Cloudflare 522 error (conn...

Windows Defender Real-Time Protection Greyed Out: How to Fix

If you open Windows Security and see the real-time protection toggle greyed out, you can't tu...