Have you ever made a mistake on a computer and wished you could take it back? The Undo feature can help!

Most programs have an Undo command. It removes the last change you made. If you added text, Undo will delete it. If you deleted something, Undo will bring it back. This is useful if you accidentally remove an important part of your work.

You can find Undo in the Edit menu. Many programs also have an Undo button. It usually looks like a curved arrow pointing left. In Google Docs, you can see this button on the toolbar.

A quick way to use Undo is with a keyboard shortcut. Press Ctrl+Z (or Command+Z on a Mac).

Undo doesn’t just remember one change. It keeps track of your recent changes. For example, if you paste a picture and type a caption, Undo will first remove the caption. If you use Undo again, it will remove the picture. But once you close the file, Undo history is lost.

There is also a Redo function. Redo cancels the last Undo. If you undo a change by mistake, Redo will bring it back.

Many programs have Undo, including word processors, image editors, and email apps. It’s a common and useful feature. Once you learn it, fixing mistakes becomes easy!