Stop the virtual machine of this product if it is running.
Go to the Virtual machines service on the Azure portal, select a virtual machine, and click Stop to stop the virtual machine.
Delete all the snapshots of the virtual machine for this product.
Perform the following operation for all the snapshots of the virtual machine for this product.
Go to the Snapshots service on the Azure portal and click the snapshot name.
Click Delete to delete the snapshot.
Point
If a snapshot has been restored once, any source disks (OS disk and Data disks) used for creating the snapshot remain registered. After deleting the snapshots, go to the Disks service on the Azure portal, check the disks that are not connected to the virtual machine (such as disks where the OWNER section is blank), and delete those that were used for creating the snapshots.