As most of you know Google acquired the Nik some years ago. They have made the programs free but have not continued to develop them. There is now a notice to that effect on the website but the collection is still available for download here. Note that Windows 10 is not supported nor is Photoshop after CC 2015. The latest version is 1.2.11. NOTE: It seems to run OK for me on PS CC 2017 and Win 10 so worth a try.