If you are a Microsoft customer and have an Lumia 630 device, there is a way to delete your Microsoft account on the device. To do this, follow these steps:

  1. Open the Settings app and tap on the three lines in the top left corner of the screen. This will open a menu that looks like this:
  2. Scroll down until you find “Microsoft account” and tap on it. This will open a dialog box that looks like this:
  3. In the dialog box, enter your password and tap on OK to delete your Microsoft account. If you have any questions or problems with this process, please contact our customer service team at 1-800-Microsoft (1-800-MY-NETWORK).