DEACTIVATE APUS LAUNCHER IN DEVICE ADMINISTRATORS
1. Go to Setting -> Security -> Device administrators
2. Tap on APUS and click Deactivate.
Or
1. Go to Setting -> Privacy -> Device administration -> Device administrators
2. Tap on APUS and click Deactivate.
UNINSTALL APUS LAUNCHER
1. Go to Application Manager
2. Click on Apus Icon
3. In Apus App info page tap Clear defaults.
4. Finally, Tap on Uninstall
Source: Quora
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The first thing to do is if you have already installed and default Apus Launcher on your Android device, we go where "Tools" says, since they Apus Launcher is not grouped into folder applications that can be seen on the screen. Then they head to Icon "Tools" and already inside, looking for the option that says "Settings". In the latter heading where "Applications" says, we open; as you can see all installed applications with their respective weight in the cell they appear in general. They head to the "All" shown in the third column sliding his cell to the right, to verify all downloaded applications. Vista and insured that is in the "All", turn to the left in the "Downloaded" section, click on the icon of the app you want to install, in this case Apus Launcher, you see only say APUS capitalized.
Pressing Apus in capital letters, which is respectively the configuration interface which is Apus Launcher. As you can realize several options appear; "Force Stop" means stop the application so that it can not leave, rather it is the task end application. Which brings us together is the option to your right that says "Uninstall" and press it appear to confirm, give him if, and automatically the application no longer exists in our Android device.
Uninstall Apus notification bar
Once desinstal gives, automatically a web page will open its origin, where states that qualify the product and indicate the reason for uninstall of Apus Launcher, it is unnecessary to do. They close everything and you'll see that Apus Launcher is completely uninstalled from your Android device. This is the easiest and most practical way to uninstall the launcher, which has caused many errors or problems when deleting it.