Enabling boot diagnostics for your NDR Console appliance gives you the ability to take screenshots of the console, among other things. If you want to enable boot diagnostics, you need to have an existing storage account or create a new one for this NDR Console instance.
To create a new storage account:
Use the following command:
az storage account create \
--name <storage-account-name> \
--location westus \
--resource-group <your-resource-group-name> \
--sku Standard_LRS