To manage or clear data that’s saved by Microsoft in the cloud:

  1. On a Windows 10 device taskbar, select Cortana.
  2. Select Start  > Settings , then select Permissions & History.
  3. Select Manage the information Cortana can access from other services.
  4. Select the account linked to Cortana and then select UNLINK.

To clear data about a specific interest from Cortana’s Notebook:

  1. On the taskbar, select Cortana, and then select Notebook  > Manage Skills.
  2. Select the category you want to clear data from, like News or Sports, and follow the instructions.

To manage skills:

  1. On the taskbar, select Cortana, and then select Notebook  > Manage Skills.
  2. Turn off the skill you would like to disconnect.

Note: Some location data may still be collected by other apps and services.

 

To stop Cortana from using your location:

  1. On a Windows 10 device, select the Cortana icon in the taskbar.
  2. Select Settings  > Permissions. 
  3. Select Manage the information Cortana can access from this device.
  4. Turn off Location.

Note: Some location data may still be collected by other apps and services.

 

To stop Cortana from seeing data in your calendar, email, contacts, and text messages:

  1. On a Windows 10 device, select the Cortana icon in the taskbar.
  2. Select Settings  > Permissions.
  3. Select Manage the information Cortana can access from this device.
  4. Turn off Contacts, email, calendar & communication history.
  5. Select Settings 
  6. Select Manage the information Cortana can access from other services.
  7. Select UNLINK for the name of any account you use for calendar, email, and contacts (such as Outlook.com or Microsoft 365).

Note: Turning off Contacts, email, calendar & communication history has no effect on other Connected services you’ve set up (or that were set up for you, like Outlook.com) that allow Cortana to access the same or similar communication data.

 

To stop Cortana from using browsing history:

  1. On a Windows 10 device, select the Cortana icon in the taskbar.
  2. Select Settings  > Permissions.
  3. Select Manage the information Cortana can access from this device.
  4. Turn off Browsing history.

Note: Turning off Cortana’s use of browsing history has no effect on the use of browsing history for diagnostics, or tailored experiences with diagnostic data.

 

To turn off Cortana’s personalization, to stop data collection, and to clear all of the data Cortana has associated with a particular device:

  1. On a Windows 10 device, select the Cortana icon in the taskbar.
  2. Select Settings  > Permissions.
  3. Select your Microsoft account.
  4. Select Sign out.

 

To hide Cortana in Windows 10:

Right-click anywhere on the taskbar.

Select  Show Cortana button.