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

Fix PowerShell 404 Not Found When Downloading File

You run an Invoke-WebRequest or Start-BitsTransfer command in PowerShel...

PowerShell Command Not Found but Works in CMD

Fix Port Already Allocated Error for Windows Update on Windows 10

You try to run Windows Update but get an error message like 'port already allocated'. This usuall...

How to Fix Windows Defender Authentication Failed Error

If you see "Authentication failed" when opening Windows Defender or trying to run a scan, it usua...

How to Fix 'Remote Desktop Permission Denied' Error in RDP Files

When you double-click an RDP file and get a 'permission denied' error, it usually means Windows d...

Microsoft Teams Proxy Server Troubleshooting Checklist

If Microsoft Teams fails to connect, shows a black screen, or keeps signing you out, a misconfigu...