Checklists for software errors, setup, and tool workflows.

Fix Windows Activation Service Unavailable Error

You try to activate Windows, but see 'Activation service unavailable' or 'We can't activate Windo...

Fix Windows Search Service Permission Denied Error

You might see a 'permission denied' error when Windows Search fails to index files or when you tr...

Fix 'Windows Activation Module Not Found' via Command Prompt

When you try to activate Windows and see an error that the activation module is not found, it usu...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

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

How to Fix Windows Security Not Opening

You click the Windows Security icon in the taskbar or open it from Settings, but nothing happens—...