Hi all, I have been having a problem with my HTC One X (running on its latest software, Android version 4.2.2) and for some reason; it has been deleting certain applications and replacing them on the homescreen/app drawer with a file that usually starts with "com.", but not always. It is clear that this is the file extension or the internet domain for the application. So for example, I found out that one of my applications PPSSPP was randomly deleted without my approval at all, and as you can see from the screenshot below; it has been replaced with the file "org.ppsspp.ppsspp". Now, when I try and open it, it displays an error "App isn't installed":- You can delete it, but it doesn't make any difference and will not be able to get it back at all. When I try to reinstall the app (ensuring that there is definitely space to do so), it will fully download, but when it gets to the installation stage; the message "Unknown error code during application installation: "-24"" is shown:- My phone is not rooted, and therefore cannot access certain hidden folders. If there is no solution I will do a factory reset and root it afterwards. If I have to resort to that, would anyone recommend an application from their own experience that can backup highscores, contacts, messages etc.? Thanks!