Checklists for software errors, setup, and tool workflows.

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Fix Microsoft Store Authentication Failed Due to App Permissions

You try to sign in to the Microsoft Store and see "Authentication failed" or "Something went wron...

Fix Chrome Token Expired Error: Step-by-Step Guide

If you see a "token expired" error in Chrome, it usually means the authentication token for a web...

Fix Windows Defender Not Working After Update

After a Windows update, you might find that Windows Defender (Microsoft Defender Antivirus) is di...

How to Fix Windows Search Token Expired Error

When you search for files or apps in Windows and see a 'token expired' error, it usually means th...

Fix 'pip install no matching distribution found' for Python 3.9

When you run pip install somepackage and get an error like ERROR: Could not fi...

How to Fix Windows Defender Version Mismatch on Windows 10
You might see an error saying Windows Defender has a version mismatch, or the app won't open beca...