Quickly undo mistakes in the majority of Windows programs by pressing the shortcut key CTRL + Z. For example, if you mistakenly cut or deleted text in Microsoft Word pressing the CTRL and the Z key at the same time would undo that change.
If you undo something you did not mean to undo pressing CTRL + Y will redo the undo.
If you undo something you did not mean to undo pressing CTRL + Y will redo the undo.