In this video, we learn how to backup your computer with an external hard drive. First, go online and download and install Cobian Backup. After this, start a new task on the program and then name it your computer backup. Change it to a differential and change the time frame to once every five times. Now, click on the file section and add the files you want to have backed up. If you want to copy your entire C drive, just highlight that. Now, the C drive will show up, then click add underneath this to choose where you want the backup to go. After this, click on the ok button and wait for this to finish. When done, your information will be stored on the hard drive!