This prob won't be much help but here's what I do. First, I don't save my photos as dng. I see no reason for it. Years ago when they first announced it, the scare was that other formats would be phased out (like jpg) and everyone should immediately convert all their tifs, jpgs, etc. to dng so they didn't lose all their images. Recognizing that this was alarmist hooey, I refused. To this day, I save in jpg, tif, or RAW. With that being said, I simply have my Phantom (P3S) save images as jpgs. Any editing I need to do is done in Photoshop or if it's a pano, PTGui. While there are some benefits to dngs, I find them to be more cumbersome for what I'm shooting and just prefer jpgs. To sort of answer your question , I don't know if the Windows 10 Photo app will handle a dng codec/format or not. Download a sample dng from the net and give it a try. Just Google "sample dng files".