MSSQL Decommission Instance

It is recommended to stop MS SQL services and leave them not running for at least one week before decommissioning the server.

Stop Services

Get-Service -Name *SQL*

Stop-Service -Name *SQL* -Force

Alternatively, use the Services GUI (see right)

Uninstall

Show-ControlPanelItem 'Programs and Features'

You may need to repeat the process for "Microsoft SQL Server 2009 Native Client" and "Microsoft SQL Server Compact 3.5 SP1 English"