Aug 21, · How To Disable Cortana In Windows Earlier Microsoft allowed users to turn off Cortana in Windows 10 with a simple toggle. That said, Microsoft doesn’t want users to toggle off Cortana. Consequently, the company removed this Estimated Reading Time: 2 mins. Cortana. Cortana, your personal productivity assistant, helps you stay on top of what matters and save time finding what you need. Simply type or speak requests in natural language to connect with people, manage your schedule, find a free hour, set a reminder, add a task, and more. You can also find local information, get definitions, and keep.