Word to stop automatically correcting text. 

1. To turn off AutoCorrect, click AutoCorrect Options on the Tools menu, and then clear the Replace text as you type check box.
2. To turn off spelling checker corrections, click AutoCorrect Options on the Tools menu, and then clear the Automatically use suggestions from the spelling checker check box.
3. If you no longer want Microsoft Word to automatically insert an AutoCorrect entry, delete the entry.

to stop formatting AutoCorrect entries with their original formatting.

• If you create an AutoCorrect entry that contains text only, Microsoft Word stores the entry without formatting. If you create an AutoCorrect entry that contains a field, symbol, paragraph mark (), imported graphic, or an object other than text, Word preserves the entry's original formatting. You can change these default settings when you create an AutoCorrect entry: In the AutoCorrect dialog box (Tools menu), click Plain text or Formatted text. When you insert an unformatted AutoCorrect entry, the entry takes on the formatting of the surrounding text.