Well , we have three computers working on craft images and other, now all work from the RAW see above, my wife works in PE , I prefer Canon Digital Photo Professional .but, still use PE 6 or 9 for fine work.
Make sure you click on ALL FILES when you try to open the images, or indicate jpeg or RAW Canon CR2 or other ?
Incidentally images are downloaded on XP and i7 64 bit computers without an issue and has for 10 years +