diff --git a/os_win/tests/unit/utils/compute/test_vmutils.py b/os_win/tests/unit/utils/compute/test_vmutils.py
index 23df36f6..13409781 100644
--- a/os_win/tests/unit/utils/compute/test_vmutils.py
+++ b/os_win/tests/unit/utils/compute/test_vmutils.py
@@ -1272,6 +1272,13 @@ class VMUtilsTestCase(test_base.OsWinBaseTestCase):
         self._vmutils._jobutils.stop_jobs.assert_called_once_with(
             mock_vm, None)
 
+    @mock.patch.object(vmutils.VMUtils, '_modify_virtual_system')
+    def test_set_allow_full_scsi_command_set(self, mock_modify_virtual_system):
+        mock_vm = self._lookup_vm()
+        self._vmutils.enable_vm_full_scsi_command_set(mock.sentinel.vm_name)
+        self.assertTrue(mock_vm.AllowFullSCSICommandSet)
+        mock_modify_virtual_system.assert_called_once_with(mock_vm)
+
     def test_set_secure_boot(self):
         vs_data = mock.MagicMock()
         self._vmutils._set_secure_boot(vs_data, msft_ca_required=False)
diff --git a/os_win/utils/compute/vmutils.py b/os_win/utils/compute/vmutils.py
index abcf451f..007a03d5 100644
--- a/os_win/utils/compute/vmutils.py
+++ b/os_win/utils/compute/vmutils.py
@@ -880,6 +880,18 @@ class VMUtils(baseutils.BaseUtilsVirt):
         raise exceptions.HyperVException(
             _("Exceeded the maximum number of slots"))
 
+    def enable_vm_full_scsi_command_set(self, vm_name):
+        """Enables the full SCSI command set for the instance
+        with the given name.
+
+        :param vm_name: The name of the VM for which AllowFullSCSICommandSet
+                        will be enabled.
+        """
+
+        vs_data = self._lookup_vm_check(vm_name)
+        vs_data.AllowFullSCSICommandSet = True
+        self._modify_virtual_system(vs_data)
+
     def _get_vm_serial_ports(self, vmsettings):
         rasds = _wqlutils.get_element_associated_class(
             self._compat_conn, self._SERIAL_PORT_SETTING_DATA_CLASS,