Installed & activated with no issues on Win 10. Simple to use, hard to get good results since I didn’t see a way to feather or blend the edges of the mask brush. Definitely not as simple as “click on the object you want to keep and delete the rest”, and it gets confused if you paint the green (keep) mask and the red (delete) mask over the same area. It’s still usable, but don’t expect quick results. I tried the same image with Cutout 5 and found that program much more confusing but ultimately easier to get good results.