This will ensure the shortcut applies across all documents, rather than just the one you’re currently using. Select “Normal.dotm” in the “Save changes in:” dropdown.Note that you probably shouldn’t use just Ctrl + S as that’s reserved for saving your document. Click in the “Press new shortcut key” box and press the shorcut you’d like on your keyboard.Click “Home tab” in the left column and “Strikethrough” in the right.This button should be located underneath the left-hand list. Select “Customize Ribbon” and press “Customize” next to “Keyboard shortcuts:”.Select “More... > Options” from the sidebar.We can change this by creating a custom strikethrough shortcut: The default Word Strikethrough shortcut is a bit of a pain, requiring you to press Alt, then H, then 4.
How to Create a Word Strikethrough Shortcut Otherwise, it could be Alt + 1, Alt + 3, Alt + 4, etc. If your strikethrough is second in Quick Access list like ours, this will be Alt + 2.