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

How to Fix Windows Security Blank Screen Issue

When you open Windows Security and see nothing but a blank white or gray screen, it's usually cau...

Fix PowerShell 504 Gateway Timeout in IIS Configuration

When running PowerShell scripts that make HTTP requests through IIS, you may encounter a 504 Gate...

Fix Outlook Permission Denied After Windows Update

After a Windows update, you might open Outlook and see a “permission denied” error when trying to...

PowerShell Refresh Token Expired: Quick Workarounds

When using PowerShell with Azure, Microsoft Graph, or other cloud services, you may encounter a '...

Fix Command Prompt Token Expired After Login

You log into a system, open Command Prompt, and immediately see an error that your authentication...

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" ...