View NX2

Maybe your problem is you should be using free to download VIewNX-i.
Free to download NX-D can also be downloaded. As it has noise reduction options and provision for local adjustments within an image it is probably the most versatile free download available.
https://www.nikon.co.uk/en_GB/products/category_pages/apps_software/apps_software.page
Free to download NX-D can also be downloaded. As it has noise reduction options and provision for local adjustments within an image it is probably the most versatile free download available.
https://www.nikon.co.uk/en_GB/products/category_pages/apps_software/apps_software.page