How to enable the light version of OWA in Exchange 2013?

Hello ,

By default, the option to enable the light version of OWA is not exposed in OWA 2013.

On CAS Server

Get-OWAVirtualDirectory | Set-OWAVirtualDirectory –LogonPageLightSelectionEnabled $true 

Similarly you can enable the option to select whether the computer that is running OWA 2013 is a public or private one. This is not enabled by default in 2013.

Get-OWAVirtualDirectory | Set-OWAVirtualDirectory –LogonPagePublicPrivateSelectionEnabled $true 

then 

iisreset

Thanks