Knowledge base for software setup, errors, and daily tool work.

Windows Defender Authentication Failed: Step-by-Step Checklist

You open Windows Security and see 'Authentication failed' when trying to use Windows Defender. Th...

How to Fix Command Prompt High CPU Usage on Windows 10

Fix Command Prompt Can't Connect to Internet in Windows 10

You open Command Prompt, type ping google.com or curl, and get an error...

Fix Edge Update Failed Due to Network Connection

When Microsoft Edge fails to update, the error often points to a network connection problem. This...

Fix Microsoft Store Error 0x80073cf3

When you try to install or update an app from the Microsoft Store, you might see error 0x80073cf3...

Fix 'Outlook File Locked by Windows File Sharing' Error

You try to open Outlook and get an error that the PST or OST file is locked by Windows file shari...