The Lightroom mobile is an application for mobiles (IOS and Android )devices.
If you have and IOS or an android device you can download the Lightroom mobile and sync the collection between desktop version and mobile version
Surface pro 4 runs Windows 10 and Lightroom desktop version is installed on surface pro 4
syncing only works between Lightroom desktop to Lightroom mobile.
Thanks Deepak ! It was driving me round the bend !!
OK - so is there any way I can sync between a Win 10 Desktop and Win 10 Surface ?
Really appreciate your prompt help BTW !!
Well there will be no option to sync between two desktop version of the Lightroom.
As they are working on two different catalogs.
However as a work around you can check this link out.http://www.steeletraining.com/tutorials/computers/lightroom.html