: Check the back of the CD sleeve or the manual that came in the box.
If you registered the product on Nikon’s website in 2008–2012, log into your Nikon Account. Under "My Registered Products," you might see the serial number (though often, it only shows the camera body, not the software license).
: If you purchased a digital download, search your email history for "Nikon," "Capture NX2," or "Digital River" to find the original purchase receipt and license key. Software Status and Compatibility
Capture NX2 is a professional-grade photo editing software designed to help photographers process and enhance their images. Developed by Nikon, it offers a range of advanced tools and features that cater to the needs of both professional and amateur photographers. With Capture NX2, you can edit, enhance, and optimize your images with precision and ease.