diff --git a/instances/templates/instance.html b/instances/templates/instance.html
index 5b6d3cd..ffa492c 100644
--- a/instances/templates/instance.html
+++ b/instances/templates/instance.html
@@ -1524,9 +1524,17 @@
                                                 <div class="checkbox" style="margin-left: 8px;">
                                                     <label>
                                                         <input type="checkbox" name="delete_disk" value="true" checked>
-                                                        <strong>{% trans "Remove Instance's data" %}</strong>
+                                                        <strong>{% trans "Remove Instance's disks" %}</strong>
                                                     </label>
                                                 </div>
+                                                {% if nvram %}
+                                                <div class="checkbox" style="margin-left: 8px;">
+                                                    <label>
+                                                        <input type="checkbox" name="delete_nvram" value="true" checked>
+                                                        <strong>{% trans "Remove Instance's NVRAM" %}</strong>
+                                                    </label>
+                                                </div>
+                                                {% endif %}
                                                 <button type="submit" class="btn btn-lg btn-success pull-right" name="delete">{% trans "Destroy" %}</button>
                                             </form>
                                         {% endifequal %}
diff --git a/vrtManager/instance.py b/vrtManager/instance.py
index 08ab9c2..87a5e95 100644
--- a/vrtManager/instance.py
+++ b/vrtManager/instance.py
@@ -2,7 +2,7 @@ import time
 import os.path
 try:
     from libvirt import libvirtError, VIR_DOMAIN_XML_SECURE, VIR_MIGRATE_LIVE, VIR_MIGRATE_UNSAFE, VIR_DOMAIN_RUNNING, \
-        VIR_DOMAIN_AFFECT_LIVE, VIR_DOMAIN_AFFECT_CONFIG
+        VIR_DOMAIN_AFFECT_LIVE, VIR_DOMAIN_AFFECT_CONFIG, VIR_DOMAIN_UNDEFINE_NVRAM, VIR_DOMAIN_UNDEFINE_KEEP_NVRAM
 except:
     from libvirt import libvirtError, VIR_DOMAIN_XML_SECURE, VIR_MIGRATE_LIVE
 
@@ -150,8 +150,8 @@ class wvmInstance(wvmConnect):
     def resume(self):
         self.instance.resume()
 
-    def delete(self):
-        self.instance.undefine()
+    def delete(self, flags=0):
+        self.instance.undefineFlags(flags)
 
     def _XMLDesc(self, flag):
         return self.instance.XMLDesc(flag)
@@ -186,6 +186,15 @@ class wvmInstance(wvmConnect):
         if cur_vcpu:
             return int(cur_vcpu)
 
+    def get_arch(self):
+        return util.get_xml_path(self._XMLDesc(0), "/domain/os/type/@arch")
+
+    def get_machine_type(self):
+        return util.get_xml_path(self._XMLDesc(0), "/domain/os/type/@machine")
+
+    def get_nvram(self):
+        return util.get_xml_path(self._XMLDesc(0), "/domain/os/nvram")
+
     def get_vcpus(self):
         vcpus = OrderedDict()
         tree = etree.fromstring(self._XMLDesc(0))