Very good and fast security program. I had tested Norton scxhon few years ago and was therefore very skeptical because it contained loopholes and the PC slowed clearly. So I was very surprised by the new 2013 version. Do not slow down the PC! At least not noticeably interfere and elsewhere nicht.Man warn computing time at dog world programs and can choose accordingly what should happen with the program or file. Furthermore, the program is very user friendly and what security terms to date. I am always very satisfied