Azure disk ({AzureDisk}) is not attached to any instance. Please be advised that when you delete a virtual machine (VM) in Azure, by default, any disks that are attached to the VM aren't deleted. This helps to prevent data loss due to the unintentional deletion of VMs. After a VM is deleted, you will continue to pay for unattached disks.
Recommended Mitigation
Cost optimization could be achieved by deleting non-used (unattached) azure disk.
Best practices
