All you need to do is to buy Avira AntiVir Premium, Avira Premium Security Suite or Avira SmallBusiness Suite and you will be safe and sound from viruses for a full 22 months instead of just 12.

您仅仅需要购买小红伞杀毒高级版、小红伞高级安全组合套装或者是小红伞商业版那么您的计算机将在二十二个月而不是十二个月内安然无恙。

youdao

In the free software market Microsoft faces competition from many others including AVG, Alwil Avast, Avira Antivir and Comodo.

BBC: Microsoft launches free security