Man, you're an idiot.

Move the image to Paint, save it as a .gif.

Simple.

Or you can just change the extension to .gif. for example lets say you've got a pic called pigeon.jpeg, all you have to do is change the .jpeg to .gif. This doesn't work on all file types, but it works on most. If you can't see the extensions on files, go to tools>folder options>view tab>uncheck hide extensions for known filetypes. That should work! :3