Checklists for software errors, setup, and tool workflows.

Fix Windows Defender Sync Error 504 Gateway Timeout

If you see a "504 Gateway Timeout" error when Windows Defender tries to sync, it usually means th...

How to Reset Windows Defender Settings to Default

If Windows Defender isn't behaving as expected—real-time protection won't turn on, settings are g...

Fix Outlook High CPU Usage Caused by Antivirus Scanning

Symptoms and Likely Cause

You notice Outlook consuming 50% or more CPU, making your syste...

How to Fix Windows Terminal Connection Timeout Errors

You're trying to connect to a remote server or start a WSL session in Windows Terminal, but it fa...

How to Fix Windows Security Proxy Error

You may see a Windows Security proxy error when trying to access the internet after a network cha...

Fix Windows Security Not Starting Automatically After Boot

You boot your PC and notice Windows Security (formerly Windows Defender) isn't running. The icon ...