In an attempt to clean up the right-click menu in Word 2013 and WordMail for Outlook 2013, Microsoft removed the AutoCorrect submenu and other options. You can add spell-check to the Quick Access toolbar, but it's faster simply to press F7.
When Microsoft released Office 2013 some Word and Outlook users were unpleasantly surprised to find the AutoCorrect options removed from the right-click (context) menu of Word 2013 and WordMail for Outlook 2013.
On its TechNet site, Microsoft explains that the change was made to streamline the right-click menus in those programs. (Scroll to the end of the long list of changes made to Office 2013 to find "Contents of spelling error context menu" in the Word section.)
In Outlook 2003/2007, you can access suggested spellings and AutoCorrect options for misspelled words by clicking the lightning-bolt icon that appears when you hover over the word.
Click the lightning-bolt icon under misspellings in Outlook 2003/2007 to view your auto-correct options.
Word 2010 and WordMail for Outlook 2010 expanded the context menu to include an AutoCorrect submenu in addition to suggested corrections for misspellings.
An AutoCorrect submenu was added to the context (right-click) menu in Word 2007 and 2010, and WordMail for Outlook 2010.
The design team for Word 2013 and WordMail for Outlook 2013 can't be faulted for wanting to simplify the programs' interfaces. But from an aesthetic perspective, Outlook 2013's mail-composition window looks about the same as its predecessor, with the exception of the context menu.
The mail-composition window in WordMail for Outlook 2010 appears cluttered when compared with the mail composer in Outlook 2013 (below).
The Webmail-like interface of WordMail for Outlook 2013 is decidedly less cluttered than its predecessor.
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Fast access to Outlook 2013's spell-checker and auto-correct options