Checklists for software errors, setup, and tool workflows.

Fix Windows Defender Can't Connect to Microsoft Server

When Windows Defender shows 'Can't connect to Microsoft server', it usually means the antivirus c...

Fix 'Service Unavailable' for PowerShell on Windows 10

You open PowerShell on Windows 10 and see an error like "Service Unavailable" or "PowerShell is n...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

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

Fix Windows Activation Version Mismatch Using slmgr

If you see an error like "The version of this file is not compatible with the version of Windows ...

Fix Windows Search Indexing Stuck or Frozen

When Windows Search indexing gets stuck or frozen, you may notice that file searches return no re...

Windows Security Invalid Configuration Checklist

You open Windows Security and see a message about an invalid configuration. This usually means a ...