Checklists for software errors, setup, and tool workflows.

Fix Outlook 'Connection Refused' Error During Exchange Server Setup

When configuring Outlook to connect to an Exchange Server, a 'connection refused' error typically...

Fix Windows 10 Activation Authentication Failed After Update

After a Windows 10 update, you might see an activation error like "We can't activate Windows on t...

Fix Windows Security Auto Start Registry Settings

If Windows Security (formerly Windows Defender) isn't starting automatically when you boot your P...

Fix Windows Activation Service Not Responding

When you try to activate Windows and see an error that the activation service is not responding, ...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...

Fix Microsoft Store App Version Mismatch Errors

You open a Microsoft Store app and get an error about a version mismatch, or the app won't start ...