Scroll bars show groupings of word-processing tasks that can be performed user: the button will remove the last change that was made to a document.

The Undo button

Explanation:

When creating a document it is common to make a mistake when writing a text or change your mind when editing it. Word has a very useful feature that allows you to cancel the last changes made to the document.

The way to cancel the last change made is:

Press the Undo button on the toolbar or

Open the Edit menu and select the Undo option.

The Undo tool saves a number of changes that can be canceled. The way to cancel more than one change is:

Click on the arrow next to the Undo button, to show a list of the last changes made.

Select from the list, the actions you want to cancel.