DriveBackup

DriveBackup is a free application for Windows that lets you create automatic backups when you insert a portable USB drive in your computer.

There are two different types of backup possibilities: of the USB drive to a directory on your computer (a device backup), or of one or more directories on your computer to the USB drive.

No matter which one you need, you have to set up the application first so it can work properly. Then just insert the device and add it to the application, selecting the directories you want to back up.

DriveBackup also lets you adjust other options in the settings menu, as well as compress the backup files once you create them.