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

Fix Windows Defender Not Starting Due to Invalid Config

If Windows Defender won't start and you see an error about invalid configuration, the problem is ...

How to Fix Outlook High CPU Usage Caused by Add-ins

If Outlook is using 50% or more of your CPU for no obvious reason, an add-in is often the culprit...

Outlook 404 Not Found Web App: Fixes and Checks

If you're seeing a 404 Not Found error when trying to open Outlook on the web (formerly Outlook W...

Resolving npm Dependency Conflicts After an Update

Fix Windows Update Error 0x80070003: Practical Steps

Windows Update error 0x80070003 typically appears when the update process can't access a required...

Checklist for Windows Security Module Errors

When Windows Security (formerly Windows Defender) throws module errors, you might see messages li...