It is fairly easy to corrupt your SD card or your operating system on the Raspberry Pi. If this happens, and you do not have a backup, you will likely have to rebuild your system from scratch. Hence, it is important to be diligent in keeping your Pi backed up. In this lesson we show how you can back it up using Windisk32Manager, a free and simple program that will do the trick.
Please note that you can not back the card up by simply using a windows drag and drop of the contents. You actually have to make the disk image as shown in this video.