Windows only: If you've managed to delete important photos, crush a partition, or otherwise go wiping out data where you weren't supposed to, add MiniTool's free data recovery app to your list of last resorts. It's a powerful tool for finding data on Windows systems, working or otherwise.Tipster george.gear recommends Power Data Recovery as user-friendly and more powerful than previously mentioned Recuva and Restoration, having found more files than either of those apps. MiniTool also offers a tool on the same download page to create a bootable disk for file rescue, so even if the file you deleted is one that, you know, keeps Windows running, you've got options.
MiniTool Power Data Recovery is a free download for Windows systems, if you're using it for personal purposes.
Power Data Recovery [MiniTool]