You can remove the connection between Horizon 7 and the Horizon Composer service that is associated with a vCenter Server instance.

Before you disable the connection to Horizon Composer, you must remove from Horizon 7 all the linked-clone virtual machines created by Horizon Composer. Horizon 7 prevents you from removing Horizon Composer if any associated linked clones still exist. After the connection to Horizon Composer is disabled, Horizon 7 cannot provision or manage new linked clones.


  1. Remove the linked-clone desktop pools created by Horizon Composer.
    1. In Horizon Console, select Inventory > Desktops.
    2. Select a linked-clone desktop pool and click Delete.
      A dialog box warns that you will permanently delete the linked-clone desktop pool from Horizon 7. If the linked-clone virtual machines are configured with persistent disks, you can detach or delete the persistent disks.
    3. Click OK.
      The virtual machines are deleted from vCenter Server. In addition, the associated Horizon Composer database entries and the replicas created by Horizon Composer are removed.
    4. Repeat these steps for each linked-clone desktop pool created by Horizon Composer.
  2. Navigate to Settings > Servers.
  3. On the vCenter Servers tab, select the vCenter Server instance with which Horizon Composer is associated.
  4. Click Edit.
  5. On the Horizon Composer tab, under Horizon Composer Server Settings, select Do not use Horizon Composer, and click OK.


You can no longer create linked-clone desktop pools in this vCenter Server instance, but you can continue to create and manage full virtual-machine desktop pools in the vCenter Server instance.

What to do next

If you intend to install Horizon Composer on another host and reconfigure Horizon 7 to connect to the new Horizon Composer service, you must perform certain additional steps. For more information on how to migrate Horizon Composer without linked-clone virtual machines, see the Horizon 7 Administration document.