I first downloaded the free trial. In my computers with Windows 7 and 8.1 then uninstall the old version and install the new version without any problems running. On my Android devices I had to uninstall only the manually installed there version of Norton Mobile Security. One should pay attention that is removed in the settings of Appder check "security barrier", the otherwise uninstall the old app prevented. After that you can download and install the new app PlayStor.
The operation is as usual pretty simple and most of happens automatically in the background. What I like is the backup function of the computer. You choose when setting up the backups if you just want to have only important documents backed up or whether you want to have all the music, pictures, videos and so also secured further. The backup can then be carried out at specified times or automatically when not using the computer. I do not use the cloud Norton for backing up, but my WD MyBook Live network drive. This device is also easy. Simply select the drive and folder where you want to save and you're done.
As expected, I am satisfied with this produckt. However, a change from Internet Security or Norton Mobile Security on security worth only after expiration of the old License and even then you should only download the trial version of Norton. So you get paid 30 days.