I've been using for a long time and am Kasersky only intermittently switched times on a product of GDATA, but that I had always problems and did not feel really protected. For this reason I now also again added myself Kaspersky 2015. However, I would like to note here is that the program is worthwhile especially for users who can set aside enough capacity because Kaspersky in can occupy one or other action fast times 1 to 1.5 GB of RAM.