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

Fix PowerShell Connection Refused or Permission Denied Errors

When you see Connection refused or Permission denied in PowerShell, it ...

Fix Windows Update Offline Installer Network Error

When you run the Windows Update offline installer (the .msu file) and get a network error, it usu...

Setup Windows Defender to Trust an SSL Certificate

If you're running a local development server or an internal application with a self-signed or pri...

Fix Windows Update Error Due to Port 80 Already in Use

Windows Update may fail with error 0x8024402c or similar when another application is already usin...

Fix PowerShell Module Not Found on Windows 10

You run a PowerShell command like Import-Module and get an error: "The specified mod...

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" ...