Lightroom 5.7: Problems opening .SRW on Windows 10

I am trying to open my .SRW fils in Lr 5.7.1 but get the message File not imported using unsupported color mode. I have the same problem when trying to open the images in Elements 12. The PC is new and using WIN 10. .JPG's is working as before, but the raw's will not import or open. Anyone who have has an ides of what I can do to fix this?