Create HDF5 with HDFview in Windows10


I'm running 4 Windows PCs. Three of them running Windows7 one is running Windows10. On the Windows10 machine I cannot create HDF5 files with HDFview 2.13. The relevant menu item is greyed out. Anyone an idea what went wrong?
I have to say that at the moment it is only my guess that Windows10 causes the trouble.

Best Regards