Checklists for software errors, setup, and tool workflows.

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Fix Windows Defender High Memory Usage in Windows 11

You open Task Manager and see Windows Defender (Microsoft Defender Antivirus) using 500 MB or mor...

Fix Microsoft Teams Migration Error 0x80070005

When migrating Microsoft Teams data or configuring a new tenant, error 0x80070005 typically appea...

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...

Outlook Token Expired When Sending Email: Fixes & Checks

You're composing an email in Outlook, hit Send, and get an error about an expired token. This usu...

Fix Windows Update SSL Certificate Errors Not Working

You try to run Windows Update but get an error like 0x80072F0D or 0x80072EFD

Fix Git 'Fatal: Repository Not Found' Despite SSH Key Setup
You've set up an SSH key and added it to your Git hosting service, but when you try to clone or p...