Scroll down to see all of the options available, and select or clear the rules you want. The settings apply to all the documents that you edit, not just the current one.

Go to Review > Language > Set Proofing Language. Note: Languages in use in the document display at the top. Languages with downloaded proofing tools have a checkmark symbol. If you don't want Word, PowerPoint, or Outlook to mark errors in the selected text, select Do not check spelling or grammar.

On the Review tab, go to Language. Select Language, choose Set Proofing Language, and then pick Detect language automatically. In Office, the language options are in the Office Language Preferences dialog box. The display and authoring languages can be set independently.

Go to File > Options > Proofing and select AutoCorrect Options. On the AutoCorrect tab, select or clear Replace text as you type.

To select the Detect language automatically check box in Word, do the following: On the Review tab, in the Language group, click Language > Set Proofing Language.

To solve this problem, type more words in the language that you want, or clear the Detect language automatically check box. Detect the language you're typing and automatically enables the proofing tools for that language.

The Detect language automatically option, available in Word and Outlook on Windows, detects the language that you are typing and automatically enables the proofing tools for that language.

Choose Language > Set Proofing Language, and then select Detect language automatically. Set the proofing language to check spelling in different languages within a single document. Get suggestions in different languages with Editor.

Choose Language > Set Proofing Language, and then select Detect language automatically. Set the proofing language to check spelling in different languages within a single document. Get suggestions in different languages with Editor.

In OneNote, PowerPoint, Publisher, Visio, and Word: On the File menu, select Options, and choose Proofing. Select or clear the Check spelling as you type check box. In programs that have automatic grammar checking, you may also select or clear the Mark grammar errors as you type check box.