By default this feature is set to Off.
The Microsoft Immersive Reader enhances accessibility and comprehension for any reader. When enabled, the course home page, assignments, pages, and syllabus display an Immersive Reader button.
Microsoft Immersive Reader is available for you to enable individually, regardless of the preference set at the account level. However, if the feature is on for the entire account, the account preference overrides your user preference, and your user setting has no effect.
To learn more about this feature, see the Microsoft Immersive Reader website.