Sorry to hear this, I have two methods here that may be helpful to you. First of all, I am very sorry to tell you. Your phone can't uninstall Joy Launcher. Android phones need an Android launcher to ensure the normal operation of the phone. Joy Launcher is a pre-installed launcher app for Alcatel's mobile phones, and its factory version is very friendly to mobile phones. But with the update of the version, it has a high demand for mobile phones. Naturally your phone is hard to run. But maybe the new version of Joy Launcher can solve your problem. In addition, you can try the following to reduce the impact of the launcher on your phone. First, Settings>Apps>Joy Launcher> Uninstall By doing this, you can't delete the Joy Launcher but you can minimize the impact on you. Second, download the other Launcher and change the other Launcher to your default Launcher via Setting>App Default. I hope my answer can help you.