Windows Defender Authentication Failed: Step-by-Step Checklist
You open Windows Security and see 'Authentication failed' when trying to use Windows Defender. Th...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Microsoft Store Rate Limit Error When Downloading Apps
You try to download an app from the Microsoft Store, but instead of progress, you see a message a...
Fix Microsoft Store Permission Denied Without Admin Rights
You try to install an app from the Microsoft Store, but get a 'permission denied' error and you d...
How to Run Windows Terminal on Mac M1
Windows Terminal is a modern command-line tool for Windows users, but you can run it on an M1 Mac...
Fix Microsoft Teams Dependency Conflict Permission Denied
You try to install or update a Microsoft Teams app or custom bot, and get an error like 'dependen...
Fix Windows Activation Path Not Found Registry Error
You may see an error like “Windows activation path not found in registry” when trying to activate...
Topic paths
Quick titles
Fix Task Scheduler Invalid Configuration ErrorWindows Defender Disabled by Group Policy FixFix Windows Search Service Not RunningWindows Defender 404 Error in Command Prompt FixMac Can't Access Windows Share Permission DeniedDocker Permission Denied on Windows: Practical GuideWindows Security Blank Screen Fix: Reset the AppRepair Outlook PST Error 0x80040610