At the end of the list choose Install other apps option.In the Apps and Notifications tap on Special Access option.In Settings tap on Apps and Notifications.
So when you want to install an app in the future then installation will not be blocked for that app.īut after enabling app installation permission, you think app installation permission is not needed anymore or you want to enable permission for another app then it can be enabled or disabled following way: From there you can allow third-party apps installation permission for that app. Now when you would like to install an app (APK) with any app other than the Google Play Store, It will show you a popup and which will take to you “External Sources”. In Android 8.0 “O” Unknown Sources option has been replaced by another option.
