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

Fix Windows Security App Missing from Start Menu

You open the Start menu, type “Windows Security,” but nothing appears. The app may have been unre...

Fix Windows 11 Installation Assistant Stuck at 99% with Clean Boot

You're upgrading to Windows 11, and the Installation Assistant gets stuck at 99% for a long t...

Windows 11 Update Stuck at 0%: How to Fix with Troubleshooter

You click Check for updates, it sits at 0% for ages, and the progress bar doesn't budge. This...

Fix Docker Volume Permission Denied for Postgres

Fixing Cloudflare 522 Error: CDN Configuration Steps

If you see a 522 Connection Timed Out error from Cloudflare, it means your CDN (...

Fix Git SSL Certificate Problem on Windows: Unable to Get Local Issuer

If you see fatal: unable to access 'https://...': SSL certificate problem: unable t...