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

Fix Windows Activation Error 0x8007007b SSL Certificate Issue

If you see error 0x8007007b when trying to activate Windows, it often points to an SSL certificat...

Fix Chrome DNS_PROBE_FINISHED_NXDOMAIN After Update

After a Chrome update, you might see the error DNS_PROBE_FINISHED_NXDOMAIN when ...

Fix Windows Defender Module Not Found After Antivirus Uninstall

After uninstalling a third-party antivirus program, Windows Defender may fail to load its modules...

How to Fix Command Prompt Failed to Start on Windows 10

If you click on Command Prompt and nothing happens, or you see an error like “Windows cannot find...

Solving Cloudflare Tunnel Permission Denied Issues

If you're seeing a "permission denied" error when running cloudflared tunnel, it usu...

Fix Windows Defender Module Not Found Error 0x80070643