Change default disk option to Standard disk from premium when creating virtual machine

Question

Change default disk option to Standard disk from premium when creating virtual machine .
Hi Team I want to change the default disk option when deploying the VM from premium to standard wanted to know if this possible .
I am trying to help customer who is trying to make sure the users are not using premium by default .

Answer 1

You cannot change the default option that is selected in the UI. However, you could use Azure policy to prevent users from creating VM's with premium disks. For example this policy will block the creation of premium disks:

{
        "mode": "All",
        "parameters": {},
        "policyRule": {
            "if": {
                "allOf": [
                    {
                        "field": "type",
                        "equals": "Microsoft.Compute/disks"
                    },
                    {
                        "field": "Microsoft.Compute/disks/sku.name",
                        "equals": "Premium_LRS"
                    }
                ]
            },
            "then": {
                "effect": "deny"
            }
        }
}