One of the best things that you can actually do in order to avoid a virus from entering your computer is not visit shady websites. There are a lot of websites that can actually provide you with free software and keyword generators for you to convert the software into premiums software, but most of them are actually viruses that would target your computer once you allow them into your system. There is a lot of anti-virus that can actually bring about the necessary warning systems, but you would definitely fall are to a variety of viruses, due to the evolving nature.
There are a lot of such people that can actually give you a variety of ideas about the different kinds of viruses, and the best possible thing that you can actually find about them is that you need to always keep upgrading your anti-virus software. This would result in keeping your computer extremely safe from any sort of virus attack, and you would certainly be able to create a sense of security in your own computer and take care of any such problems.