Checklists for software errors, setup, and tool workflows.

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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...

How to Set Up Microsoft Store on Mac Step by Step

If you're trying to set up the Microsoft Store on a Mac, you'll quickly find that there's no nati...

Fix Windows Defender 404 Not Found After Update

After installing a recent Windows update, some users find that Windows Defender is missing or sho...

Fix Windows 11 Search Not Showing Open Files

If you search for a file that you know is open in an app, but Windows 11 search doesn't show it, ...

How to Fix 'Command Not Found' in Command Prompt

You type a command in Command Prompt and get 'xxx' is not recognized as an internal or exte...

PowerShell Not Responding When Opening: Quick Fixes
You click PowerShell and nothing happens — or the window opens but immediately freezes. This is a...