By default, Office automatically corrects many common typing errors and applies formatting while you type.
Choose Tools - AutoCorrect - AutoCorrect Options.
Click the Replace tab.
In the AutoCorrect list, select the word pair that you want to remove.
Click Delete.
Choose Tools - AutoCorrect - AutoCorrect Options.
Click the Localised Options tab
Unmark the "Replace" check box(es).
Choose Tools - AutoCorrect - AutoCorrect Options.
Click the Options tab.
Unmark the "Capitalise first letter of every sentence" check box.
Office automatically draws a line when you type three of the following characters and press Enter: - - = * ~ #
Choose Tools - AutoCorrect - AutoCorrect Options.
Click the Options tab.
Unmark the "Apply border" check box.