You can use Horizon Client to connect to a server and log in to remote desktops and applications. Depending on how an administrator configures policies for remote desktops, end users might be able to perform many operations on their desktops. Setting the Certificate Checking Mode for Horizon ClientAdministrators and sometimes end users can configure whether client connections are rejected if any or some server certificate checks fail. Select a Display ProtocolYou can select the display protocol that Horizon Client uses when you connect to a remote desktop or application. Connect to a Remote Desktop or ApplicationTo connect to a remote desktop or application, you must provide the name of a server and supply credentials for your user account. Disconnecting From a Remote Desktop or ApplicationYou can disconnect from a remote desktop without logging off, so that applications remain open on the remote desktop. You can also disconnect from a remote application so that the remote application remains open. Logging Off From a Remote DesktopIf you are currently connected to and logged in to a remote desktop, you can use the Windows Start menu to log off.