Users can run the Horizon desktops or applications to which they are entitled from the Workspace ONE portal or app.

Based on how an application or desktop has been configured in Horizon, it can be launched in Horizon Client or in a browser. For applications or desktops that can only be launched in Horizon Client, users must install Horizon Client on their systems. For applications and desktops that can be launched in either Horizon Client or a browser, users can select the launch method.

Users can also set their default launch preference in the Preferences page in the Workspace ONE portal. This user preference overrides any default launch preference set at the administrator level.

Note: Users cannot set a default launch preference in the Workspace ONE app.


Based on how the application or desktop has been configured in Horizon, users might need to install Horizon Client.

For supported Horizon Client versions, see the VMware Product Interoperability Matrix at


  1. Log in to the Workspace ONE portal.
  2. Click Open on the desktop or application you want to use, select the launch method, and click Open.
    Note: Based on how the desktop or application is configured, and on your preference, you may need to install Horizon Client on your system.


If you chose the Browser option, the application or desktop is started in a browser. If you are using Horizon 6.1.1 or later, the browser window also displays an HTML Access Tray.

Note: If the SAML metadata on the Horizon Connection Server instances has expired, the application or desktop will not launch. To resolve this issue, sync the Horizon resources to VMware Identity Manager again. Navigate to the Catalog > Virtual Apps Collections page, select the collection, and click Sync.