Checklists for software errors, setup, and tool workflows.

Fix Windows Defender Service Not Starting (Error 404)

If you see error 404 when trying to start Windows Defender, it usually means the service executab...

Windows Search Proxy Error Codes: List and Fixes

When Windows Search fails to connect to its online services—like Cortana or web suggestions—it of...

Fix Windows Terminal '404 Not Found' Profile Error

When you open Windows Terminal and see a '404 not found' error for a profile, it usually means th...

Fix Outlook High CPU Usage Caused by Antivirus Scanning

Symptoms and Likely Cause

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

Fix Outlook Slow Sync with Exchange Server: Practical Steps

Outlook syncing slowly with Exchange Server is a common frustration. Mail, calendar, and contacts...

How to Fix Remote Desktop Blank Screen on Mac

You connect to a remote Mac via Remote Desktop, but the screen stays black or blank. This is a co...