It is possible to clone a hard drive with backup utility software that copies the contents of a hard drive to another hard drive. The process can take minutes or hours, depending on how much data is on the original drive.
Examples of backup utility programs include ShadowCopy, Clonezilla and Acronis Backup & Recovery. A cloned hard drive is an exact duplicate of the original. People can replace an old drive with a new clone and experience no difference in function. This makes it an ideal backup in case a computer is damaged. It is important to store the cloned drive away from moisture, static electricity and magnets.