Spell-checking in Word 2010 is as simple as clicking the “Spelling & Grammar” button — if you can find it.
1. To spell-check and grammar check in Word 2010, first head to the “Review” tab in the main menu:
2. Next just click on the “Spelling & Grammar” button:
3. The spelling and grammar check will begin and you should see a box like the one below as the spell checker finds something it wants to correct: