Occasionally, I encounter a folder of photos that takes forever to open. I tried defragging, copying the files to a new folder, and cussing at it. None of these helped, although the last one made me feel better.
Finally found the fix. Incredibly simple, and I felt incredible stupid.
- Right click the folder
- Select properties
- Click the Customize tab
- Select "Pictures and Videos"
- Click OK
That was it. Then folder opens right away.