When swapping out your Sonicwall Gen6 for a newer Gen7 the config needs to be converted,- unless you want to start from scratch. Sonicwall has provided a nice migration utility for this, available here: https://migratetool.global.sonicwall.com/
Optional features
Check available optional features: DISM /Online /Get-Capabilities Install an optional feature: DISM /Online /Add-capability /capabilityname:Media.MediaFeaturePack~~~~0.0.1.0