I lost the ability to copy and paste photos from my own Win10 computer after removing Windows photo viewer from startup. I can copy and paste photos from my browsers as well as any text. I noticed the problem when I tried to copy a photo on my desktop to paste into Facebook. Then I discovered that I couldn’t even paste a photo into word. I deleted Windows Photo Viewer a while back because it was constantly showing photos on my computer and I thought it was wasting resources or possibly sharing them in the internet without my permission. Anyway I tried to reinstall Windows Photo Viewer and it was taking so long that I thought it was froze up and canceled.