Control key
In Microsoft Word it is possible to turn smart quotes off (in some versions, by navigating through "Tools", "AutoCorrect", "AutoFormat as you type", and then unchecking the appropriate option). Alternatively, typing Control-Z (for "Undo") immediately after entering the apostrophe will convert it back to a typewriter apostrophe. In Microsoft Word for Windows, holding down the Control key while typing two apostrophes will produce a single typographic apostrophe.