Using spell check in Word can prevent errors from appearing. Use the Word spell check function to produce error-free Word documents.
If you're sharing a document like a resume with someone, you might not want that person to see the red and blue lines. Turning off the automatic spelling and grammar checks only applies to your computer, so the lines may still show up when someone else views your document. Fortunately, Word allows you to hide spelling and grammar errors so the lines will not show up on any computer.