Remediation
If data stored in the disk is no longer useful, refer to Azure documentation to delete unattached data disks at:
- https://docs.microsoft.com/en-us/rest/api/compute/disks/delete
- https://docs.microsoft.com/en-us/cli/azure/disk?view=azure-cli-latest#az-disk-delete
If data stored in the disk is important, To encrypt the disk refer azure documentation at: