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

Fix 'Not Recognized as Internal or External Command' Error

You type a command in Command Prompt and see "'command' is not recognized as an internal or exter...

Fix Outlook Blank Screen After Office Installation

Symptom and likely cause

After installing or updating Microsoft Office, Outlook may open ...

Fix Chrome 502 Bad Gateway After Profile Reset

If you see a 502 Bad Gateway error in Chrome after resetting your browser profil...

How to Fix Certbot Certificate Renewal Failures

You run certbot renew and get an error. Maybe the command hangs, or it says 'renewal...

How to Fix Command Prompt Dependency Conflicts

When you run a command in Command Prompt and see errors like 'The code execution cannot proceed b...

Windows Security Not Scanning for Viruses: How to Fix

If Windows Security (formerly Windows Defender) is not scanning for viruses, you may see an error...