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

How to Fix Outlook Setup Authentication Errors

You're setting up Outlook for the first time or reconfiguring an account, and you get an authenti...

Windows Security Troubleshooting Guide

Windows Security (formerly Windows Defender) usually runs quietly in the background, but sometime...

Fix Windows Defender Service Unavailable Error

You open Windows Security and see the message 'Windows Defender service unavailable' or 'Windows ...

How to Fix Remote Desktop Not Connecting on Mac

When your Mac won't connect to a remote desktop, the screen usually hangs on "Connecting" or show...

Fix PowerShell Authentication Failed Credentials Error

Fix Windows Defender Connection Refused via Group Policy

If you see a "connection refused" error when trying to open Windows Defender Security Center or r...