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

Fix Windows Defender DNS Error on Windows 10

If you see a DNS error in Windows Defender on Windows 10, it usually means the app can't reach it...

How to Fix Windows Security Settings Not Saving Changes

You change a setting in Windows Security—like toggling real-time protection or adding an exclusio...

How to Fix Cloudflare Full Strict SSL Error

If you see a Cloudflare Full (Strict) SSL error, your site may show a 525, 526, or similar SSL ha...

Fix Command Prompt Crashing Due to Corrupted System Files

If Command Prompt opens briefly and then closes immediately, or crashes during use, corrupted sys...

Fixing GitHub Actions Permission Denied for Git Commands

Fix Windows Security Version Mismatch Permission Denied

You might see a 'version mismatch' or 'permission denied' error when opening Windows Security, ru...