Checklists for software errors, setup, and tool workflows.

OneDrive Sign-In Troubleshooting Checklist

If you can't sign in to OneDrive, the problem is often something simple — wrong password, cached ...

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 Fix Microsoft Store Not Opening After Update

After a Windows update, the Microsoft Store may fail to open—clicking the icon does nothing, or i...

Fix Outlook High CPU Usage Caused by Antivirus Scanning

Symptoms and Likely Cause

You notice Outlook consuming 50% or more CPU, making your syste...

Fix Chrome DNS Error: Cannot Connect to Server

You're trying to load a website in Chrome, but instead you see 'This site can't be reached' with ...

Fix Windows Search Not Working After Sleep Mode

You wake your PC from sleep, type in the Start menu search bar, and nothing happens—or results ar...