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

Reset Command Prompt Layout Settings: Step-by-Step Guide

If your Command Prompt window looks different—fonts are tiny, colors are off, or the layout is st...

Fix 'Cannot Connect to Exchange Online' in PowerShell

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

Outlook 404 Not Found on Shared Mailbox: Fixes & Checks

You try to open a shared mailbox in Outlook and see a 404 Not Found error. This usually means Out...

Fix Outlook Blank Screen After Office Installation

Symptom and likely cause

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

Fix Microsoft Store 404 Error: Practical Steps That Work

When you open Microsoft Store and see a 404 Not Found error, it usually means the store can't loa...

How to Clear Microsoft Teams Cache on Mac

If Microsoft Teams on your Mac is acting up—slow loading, login loops, missing messages, or garbl...