On windows (with blender 2.54) can the .thumbnails folder be moved to a different location? If so, how?
I don’t know, but you can use blender to remove them. when you go to a folder of images, you’ll notice blender displays the thumbs.dll or whatever it is along with the rest of the images, and to delete it, you just select it and press R. No file can hide, because blender sees all.