you copy all the original files to a another hard disk or flash drive before formatting the disk with the original files
Just another copy of the file.
The files which store the copy of your original data are called backup files. In windows backup files are created by NTbackup utility and windows backup and restore utilities. These backup files have .bkf file extension.
Anal-file
File extention (.bak, .backup or similar) Size, depending on how big the backup is.. it can be as big as two terabytes (tb).
The best backup solution is to copy and paste documents. This makes it so if something happens to the original file, it can be replaced by the backup file you created.
backup
backup
Backup and Restore Center in the Control Panel.
If one is looking to download a file backup manager, there are several options. There are several websites that offer downloads like Barracuda, Wii Backup manager, or Software Resolution.
You can copy and backup any file in Linux, even if they are open. However, if the file is being edited, this is generally a bad idea, since the backup will not reflect any recent changes after they are saved.
backup file
NTbackup.exe