Cannot generate thumbnail in Android Gallery Lately, some of my pictures just disappear and can't be loaded. It just says "Cannot generate thumbnail". All of a sudden, those pictures are having 0KB and no longer available. They're not sorted or anything, they're not different from the other good pictures. I really don't get what's the problem.

I tried getting them on my laptop, but it just says the file is empty. There is nothing to open? There are no viruses or anything, I already checked a few times. I really don't want to lose more pictures. Please help.
Try Settings &rarr; Apps &rarr; All Apps &rarr; Gallery &rarr; Clear Data. That should regenerate thumbnails, or you could try rebooting your smartphone.