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

Avoid Windows Activation Version Mismatch on Reinstall

You reinstall Windows, enter your product key, and get an error: “This product key does not match...

Configure Windows Terminal to Trust a Self-Signed Certificate

If you're using a self-signed certificate for HTTPS on a local server or test environment, Window...

Fix Windows Defender Update Error 0x80240034

If you see error 0x80240034 when updating Windows Defender, it usually means the update download ...

Fix GitHub Actions Cache Action Permission Denied Error

Fix Nginx Permission Denied Errors: Common Setup Mistakes

You've installed nginx, configured a server block, and when you try to start it, you see pe...