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.
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3. Apply
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View listFix Chrome Profile Rate Limit Error and Sync Issues
You open Chrome and see a message about a rate limit error, or your bookmarks, passwords, and set...
Fix Microsoft Store Apps Not Updating After Windows Update
After a Windows update, you might find that your Microsoft Store apps refuse to update. They may ...
Fix 'Port Already Allocated' with Security Permission Denied
You try to start a service or application, and you get an error like "port already allocated" or ...
Fix Windows Security Authentication Error 0x80070035
When you try to access a shared folder or printer on another computer, you might see an error:
How to Rearm Windows Activation Grace Period
When Windows is not activated, you have a limited time (typically 30 days) before it starts showi...
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