These are useful options if you want to revert an action, or to bring back lost text. There are two ways to use the redo and undo commands on your web browser:


Press Ctrl + Z to undo an action. To redo an action, press Ctrl + Y.
Click "Edit" and then "Undo" or "Redo." This will perform the same action. You can find the "Edit" option on the top right of the toolbar.;
, There are three main ways to use the undo and redo commands in Microsoft Office programs on a PC:Click "Edit" and then select "Undo" to undo and "Repeat" to redo. You can find this option on the top left of the toolbar.
Press the "Undo" or "Redo" buttons. The "Undo" button will look like an orange arrow pointing to the left and the "Redo" button will look like a blue arrow pointing to the right. You can find them next to each other on the top of the toolbar.
Use the F2 and F3 keys. The F2 key can undo an action and the F3 key can redo an action. You may need to press the F-lock key to activate these buttons.
 Though some of the above options may also work in a variety of other programs, if you've opened another program, just click on "Edit" on the top of the toolbar and see the key codes that are listed to the right of the "Undo" and "Redo" options. This will tell you which keys to press to undo and redo your actions.


Note that unfortunately, not every action can be redone or undone. If you're pressing the correct buttons and it's not working, then you've done one of these actions.
Use the undo and redo commands on your web browser.
Use the undo and redo commands in Microsoft Office programs.
Use the undo and redo commands on other programs.
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