Learn More About Backups It is often a common misconception that just by moving your files or photos on to an external hard drive or USB stick, your files are now backed up. Unfortunately this is incorrect and as you still only have one copy of theses files or photos, they are not backed up, just moved. A backup is where you have two copies of yor files or photos andthey are located in two different locations, e.g. one copy on your PC or laptop and another BACKUP copy on and external hard drive, USB stick or up in the cloud. If you are running low on disk space on your PC or laptop, by all means move the files to an external device but ensure that you make copies of these to another device as well or send copies of these up to a cloud account.