As usual, Kaspersky.

For software you can say only that it is in my opinion still is the best alternative for an anti-virus program / internet security program and I had been professionally dealing with many others. It runs silently in the background and does not consume resources unnecessarily, finds the most threats and not annoying all the time with oversized screen windows. In addition, it is priced in a very good area.
As long as there will be CDs Kaspersky empfhle I also order these packets, not just the license numbers. The installation CD can also be used as a Rescue Disk and has already often rescued computer.
Delivery as always with Prime.