Updated: 10/17/2017 by Computer Hope

Process of restoring an older version of a file or document. For example, a file may have become corrupt and you could revert back to an earlier copy by copying the file from a backup.


If you have deleted text and perform an undo, you can revert the undo by pressing the Ctrl+Y or Cmd+Y keyboard shortcut.

Redo, Software terms, Undo