Windows 10 has a location service used by some Windows and third-party apps to determine your geographic location. The location service delivers location-based content to your computer or device. Such content includes maps, directions, and Cortana, in addition to finding useful service locations like gas stations and restaurants in your vicinity. The default setting for location service is On. If you would like to turn it off, please use the steps below.
  • Disable Windows 10 Location Service in Settings
    • Click or tap the Start button, and click or tap Settings.

    • In Settings, click or tap Privacy (Location, camera).

    • In Privacy settings, click or tap Location in the left navigation. Under the Location section, click or tap the Change button. Click or tap the On button to toggle it Off.

    • It is important to note that the Change button is only present when viewing Settings while logged in as an administrator. If logged in under a non-administrator user account, the option to toggle location service On and Off is still present.

                 Hint: The option to toggle Location On may appear grayed out. This may be due to the administrator of your computer disabling Location service on the administrator level.

                    

                 In this case, log into Windows 10 using an administrator user account, go to Settings > Privacy > Location, click the Change button, and turn Location On. Once you turn Location on, the Location toggle will no longer display as grayed out.

  • Disable Windows 10 Location Service in Action Center
    • You can also disable location service in the Windows 10 Action Center. To launch Action Center, click or tap the Action Center icon    disable Windows 10 location service in the task bar, or press and hold the Windows key on your keyboard, and press the “A” key. Click the Location icon to disable location service.

Source: https://techhelpkb.com/disable-windows-10-location-service/