diff --git a/appliances/Empty-VM.gns3a b/appliances/Empty-VM.gns3a
deleted file mode 100644
index e473a33..0000000
--- a/appliances/Empty-VM.gns3a
+++ /dev/null
@@ -1,87 +0,0 @@
-{
-    "appliance_id": "1cfdf900-7c30-4cb7-8f03-3f61d2581633",
-    "name": "Empty VM",
-    "category": "guest",
-    "description": "A empty VM with empty hard disks 8G, 30G, 100G & 200G.",
-    "vendor_name": "GNS3",
-    "vendor_url": "https://gns3.com",
-    "documentation_url": "",
-    "product_name": "QEMU",
-    "product_url": "https://sourceforge.net/projects/gns-3/files/Empty%20Qemu%20disk/",
-    "registry_version": 5,
-    "status": "experimental",
-    "maintainer": "GNS3 Team",
-    "maintainer_email": "developers@gns3.net",
-    "usage": "Default at first boot the VM will start from the cdrom.",
-    "port_name_format": "eth{0}",
-    "qemu": {
-        "adapter_type": "e1000",
-        "adapters": 1,
-        "ram": 1024,
-        "arch": "x86_64",
-        "console_type": "vnc",
-		    "hda_disk_interface": "sata",
-        "boot_priority": "d",
-        "kvm": "allow"
-    },
-    "images": [
-        {
-            "filename": "empty8G.qcow2",
-            "version": "8G",
-            "md5sum": "f1d2c25b6990f99bd05b433ab603bdb4",
-            "filesize": 197120,
-            "download_url": "https://sourceforge.net/projects/gns-3/files/Empty%20Qemu%20disk/",
-            "direct_download_url": "https://sourceforge.net/projects/gns-3/files/Empty%20Qemu%20disk/empty8G.qcow2/download"
-        },
-		    {
-            "filename": "empty30G.qcow2",
-            "version": "30G",
-            "md5sum": "3411a599e822f2ac6be560a26405821a",
-            "filesize": 197120,
-            "download_url": "https://sourceforge.net/projects/gns-3/files/Empty%20Qemu%20disk/",
-            "direct_download_url": "https://sourceforge.net/projects/gns-3/files/Empty%20Qemu%20disk/empty30G.qcow2/download"
-        },
-		    {
-            "filename": "empty100G.qcow2",
-            "version": "100G",
-            "md5sum": "1e6409a4523ada212dea2ebc50e50a65",
-            "filesize": 198656,
-            "download_url": "https://sourceforge.net/projects/gns-3/files/Empty%20Qemu%20disk/",
-            "direct_download_url": "https://sourceforge.net/projects/gns-3/files/Empty%20Qemu%20disk/empty100G.qcow2/download"
-        },
-        {
-            "filename": "empty200G.qcow2",
-            "version": "200G",
-            "md5sum": "d1686d2f25695dee32eab9a6f4652c7c",
-            "filesize": 200192,
-            "download_url": "https://sourceforge.net/projects/gns-3/files/Empty%20Qemu%20disk/",
-            "direct_download_url": "https://sourceforge.net/projects/gns-3/files/Empty%20Qemu%20disk/empty200G.qcow2/download"
-        }
-    ],
-    "versions": [
-        {
-            "name": "8G",
-            "images": {
-                "hda_disk_image": "empty8G.qcow2"
-            }
-        },
-        {
-            "name": "30G",
-            "images": {
-                "hda_disk_image": "empty30G.qcow2"
-            }
-        },
-        {
-            "name": "100G",
-            "images": {
-                "hda_disk_image": "empty100G.qcow2"
-            }
-        },
-		    {
-            "name": "200G",
-            "images": {
-                "hda_disk_image": "empty200G.qcow2"
-            }
-        }
-	]
-}
diff --git a/appliances/empty-vm.gns3a b/appliances/empty-vm.gns3a
index e473a33..8e2ac20 100644
--- a/appliances/empty-vm.gns3a
+++ b/appliances/empty-vm.gns3a
@@ -8,7 +8,7 @@
     "documentation_url": "",
     "product_name": "QEMU",
     "product_url": "https://sourceforge.net/projects/gns-3/files/Empty%20Qemu%20disk/",
-    "registry_version": 5,
+    "registry_version": 4,
     "status": "experimental",
     "maintainer": "GNS3 Team",
     "maintainer_email": "developers@gns3.net",