In my opinion, makes the Prg. exactly what it is intended, namely to protect against pests. Since the Prg. also statistics on installs, downloads, threats leads situations, etc., you should assume that they are conducted properly and also over the entire period, but this is possible only through a high storage space wastage. Over the course (menu item) you can find out about the relevant data, but ends in an odyssey of waiting for three to four days of data storage because the Prg. Data stores that are absolutely unnecessary in my opinion, and therefore takes on the corresponding statistics file imense Aussmasse. But you can delete indeed, then are gone, the more important data for the statistics and you start all over again. Within a day (4-6 hrs. The PC in use) corresponding file has grown to 10 MB. So periodically remove !! Norton should there rectify (automatic delete according to eg a week, with retention of the data for which ansich useful statistical information.