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

How to Fix Microsoft Teams 404 Error After Update

After a Microsoft Teams update, some users see a 404 error when trying to open the app or access ...

Chrome Extension Setup Checklist for Beginners

You've decided to try a Chrome extension. Maybe you want to block ads, save passwords, or manage ...

Windows Defender Troubleshooting Checklist

Windows Defender (now Microsoft Defender Antivirus) usually runs quietly in the background, but s...

Fix Windows Terminal 504 Timeout by Clearing DNS Cache

If you're getting a 504 timeout error in Windows Terminal when trying to connect to a remote host...

How to Fix Outlook Rate Limit Error in Office 365

Understanding the Error

You may see a message like "Too many requests" or "Server busy" ...

SSH Permission Denied (Publickey) on EC2: Setup Fixes

If you're seeing "Permission denied (publickey)" when trying to SSH into an AWS EC2 instance, the...