The Windows presentation mode corresponds to the classical Windows Desktop (see image below).
Select the Windows option to enable this presentation mode.
Once enabled, a Windows user will be created; in this case, User which is the default user for Praim Windows thin clients. If necessary, you can change the credentials by clicking on User. If the device is joined to a domain, be carefull with the domain settings (e.g. the use of complex passwords).
To disable the presentation mode, click on the Disable button.
You will be prompted for confirmation, click OK to proceed.