How to restart an unresponse Windows VM from the command line in Citrix xen server

If you have tried to restart or force restart a windows VM from the Citrix console and it does not work you can follow this procedure to make sure it restarts.

Run xe-toolstack-restart from the command line and it will show the virtual machine running state. In this case the virtual machine is not responding.

The dom-id associated with the vm is unresponsive in the xenserver control domain.
You can recover by terminating the dom-id for the virtual  machine or reboot the xen server.

This is the procedure as listed in http://support.citrix.com/article/CTX131421

Run the following command to check the dom-id of the virtual machine in the XenServer control domain:
list_domains | grep
Following is a sample of the preceding command:
[root@Xen6 ~]# list_domains | grep bcdb1445-1f28-9600-ae84-53c254167ae6
Output :
51 | bcdb1445-1f28-9600-ae84-53c254167ae6 | H
51 – the dom-id of the VM
bcdb1445-1f28-9600-ae84-53c254167ae6 – UUID of the VM
H – state of the virtual machine (H indicates that this is a HVM guest, typically it means this is a Windows virtual machine.)
Refer to the Knowledge Center article CTX127896 – How to Use the XenServer Xentop Utility for more information about the other possible Virtual Machine states.
Run the following command to destroy the dom-id of the virtual machine:
destroy_domain –dom-id
Following is a sample of the preceding command:
/opt/xensource/debug/xenops destroy_domain –domid 51