Hi Ricki,
Since you already deactivated the Microsoft Launcher, we believe that your device is already running its previous Operating System. Because of this, it will be best to contact the manufacturer of your device and inform them that you want to use its previous management system. They are the best people that could help you with your concern because they have the expertise when it comes to navigate and manage the settings of your device.
If further assistance is needed, we are here to help.