CloudDrive.Delete Method

public void UnmountAndDeleteDrive()
{
    // Use the storage emulator.
    CloudStorageAccount storageAccount = CloudStorageAccount.DevelopmentStorageAccount;

    // Create the Blob service client.
    CloudBlobClient client = storageAccount.CreateCloudBlobClient();

    // Create the container for the drive if it does not already exist.
    CloudBlobContainer container = new CloudBlobContainer("mydrives", client);
    container.CreateIfNotExist();

    // Get a reference to the page blob that will back the drive.
    CloudPageBlob pageBlob = container.GetPageBlobReference("myvhd");

    // Return a reference to the drive backed by the specified page blob. 
    CloudDrive drive = new CloudDrive(pageBlob.Uri, storageAccount.Credentials);

    try
    {
        // Create a 20 MB drive.
        drive.Create(20);

        // Mount the drive.
        string driveLetter = drive.Mount(0, DriveMountOptions.None);

        // Write some files to the drive.
        for (int i = 0; i < 1000; i++)
        {
            System.IO.File.WriteAllText(driveLetter + "\\" + i.ToString() + ".txt", "Test");
        }

        // Write out a file's length.
        FileInfo file = new FileInfo(driveLetter + "\\0.txt");
        System.Diagnostics.Debug.WriteLine(file.Length);

        // Unmount the drive.
        drive.Unmount();

        // Delete the drive.
        drive.Delete();
    }
    catch (CloudDriveException e)
    {
        System.Diagnostics.Debug.WriteLine(e.Message);
    }
}