I used to write most of my own applications, did what I wanted that way, and never had to put up with someone's sloppily-written coding. Now, not so much, can't sit and type that long, carpal tunnel, AND, the eyes, well, just don't see so good...So not knocking any of the photo applications available on the 'net, but, for me, the way I use my software, and the expectations I have of it, the only photo program I ever recommended was:IrfanView - home pagedoes just about ANYTHING, including washing the sink out!!!Seriously, has always been a very well-written, and, WELL-MANNERED, FREE program. It doesn't down-load and install a bunch of crap-ware with itself, nor try to take over and do anything but what you ask of it, and no steep-learning-curve to be able to use it...Also, make sure you down-load the plug-ins and install them.openoffice is a very good program, if you don't have MS Office, it can manipulate MS' office document extensions also.Depending upon what programs/applications you may already have, an option available in Win-7 was Windows Virtual PC of Win-XP, was a free down-load from MS. I don't know if that is an option available in Win-10 or not, never looked. You might also consider a dual-boot set-up.
The only windows program I still use. PCLOS has it set in the repos's to install it like a Linux app but also installs wine. It also runs like a native Linux app, I can right click on an image and choose "Open with" Irfanview. Like Daniel I've also been using it for many, many years.