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

Fix 'Cannot Connect to Exchange Online' in PowerShell

When you run Connect-ExchangeOnline in PowerShell and get an error like "Cannot conn...

MongoDB Authentication Failed Error 18: Causes and Fixes

When you see MongoDB AuthenticationFailed (error code 18), it means the server r...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...

Fix Microsoft Teams Stuck on Loading Screen

If Microsoft Teams gets stuck on the loading screen—spinning dots or a blank window that never fi...

Fix Windows Update High Memory Usage with These Steps

You notice your PC is sluggish, the fan is loud, and Task Manager shows a process like Ti...