Windows 8.1 and 10 have a file history feature that you can use to automatically make copies of your files anytime you make any changes in them. It works best if you have a network hard drive to save them on but other configurations are possible. What is nice is that you end up with multiple incremental copies of documents so if you're working on something and want to go back to a previous draft it's easily accessible. It doesn't replace true backups or images, but it does provide a different approach.