BuddyBackup allows you to backup unlimited files online for free. It lets you safely store your data on your friend's computer. But do no worry, though. The data is absolutely secure because its been encrypted before it's sent to your friend's computer, but you should also allow them to safe their data at your computer.
You can also create secure and easy backups to USB drives and other locations (such as SAN and NAS). You just have to install the utility and set for the settings and it will run in the background, It will backup the files automatically without any need of schedules. It starts with the windows and instantly backup the changed files.