try to use slider for disksize

app/UI/Client/Templates/assets/js/vm/create.js

@@ -140,7 +140,7 @@ $(document).ready(function () {
         }
     });
     //change
-    $(".mg-wrapper").delegate("#additionalDiskSize","input",function (e) {
+    $(".mg-wrapper").delegate("#additionalDiskSize","change",function (e) {
         e.preventDefault();
         var label = $(this).data("label"+$(this).val());
         $("#additionalDiskSize").html(label);

app/UI/Client/Templates/assets/js/vm/index.js

@@ -167,7 +167,7 @@ $(document).ready(function () {
         }
     });
     //change
-    $(".mg-wrapper").delegate("#additionalDiskSize","input",function (e) {
+    $(".mg-wrapper").delegate("#additionalDiskSize","change",function (e) {
         e.preventDefault();
         var label = $(this).data("label"+$(this).val());
         $("#additionalDiskSize").html(label);