Revise your Word Document
 
Undo the last operation
 
The Undo command undoes anything you do in Word, such as formatting text, moving blocks, typing and deleting text, formatting - all of it. You can allow running free the Undo command in two helpful ways:
 
One way is Press Ctrl+Z.
 
You can also access Undo option by Click the Undo command button on the Quick Access Toolbar.
 
 
An advantage of using the Undo command button is that it sports a drop-down menu that helps you evaluate the past several things you've done, or that can be undone.
 
. Unfortunately, you cannot pick and choose from the Undo command button's drop-down menu; the menu simply allows you to undo multiple instances of things all at one time.
 
. At periodic times, Undo doesn't work. Word warns you, though.
 
For example, you may see the message "There is not enough memory to undo this operation, Continue?" Proceed at your own risk.
 
. The Undo command doesn't work when there's nothing to undo, or if something simply cannot be undone. For example, you cannot undo a save-to-disk operation.