About 3 weeks ago I wanted to try a new messenger app. I downloaded and installed an app called "Messenger Home". When I installed it, it erased my desktop - with all of the folders so carefully placed and apps organized within. It continually interfered with FB messenger and other apps, so I uninstalled...at least I thought so. Then I had to update my app....it came back again and again erased my desktop. How can I get rid of it?