Hi Tom,

Sorry for my late reply. Working hard on a brand new mobile compliant website and it took more resources than expected.

This process will "add" the required Windows OS properties if missing file properties have been detected (e.g. for Windows 8.1 and Windows 10).

http://www.lindersoft.com/forums/showthread.php?46578

What you can also do is to simply highlight the specific files, press details, go to the OS tab, click twice on all OS. Save.

Friedrich