Back up

Backup is the activity of copying files or databases so that they will be preserved in case of equipment failure or other catastrophe. Backup is usually a routine part of the operation of large businesses with mainframes as well as the administrators of smaller business computers. This essential precaution is neglected by most new computer users until the first time they experience a crash or accidentally delete the only copy of the file they have been working on for the last six months. The retrieval of files you backed up is called restoring them.
As a noun, backup, it is an act of backing up.
Another meaning is a substitute or alternative. The term backup usually refers to a disk or tape that contains a copy of data.
Personal computer users can consider both local backup and Internet backup.
While it is important to have available the most recent few backups - to enable restore in case of need - it is also crucial that recent backup disks are stored safely off-site; sufficiently far away to reduce the risk of environmental damage (e.g. flood) destroying both the primary systems and the off site backups.

You can perform backup procedure with the help of Handy Backup software