It's hard to give a definite answer to this one, as it will depend on how much you are willing to pay, and what threats you are likely to hit. For businesses, a subscription protection service is often better, but for private users, it doesn't really matter, as long as you choose the right protection for you. Most free protection is adequate, for example AVG Free, but some is not. There are some protectors that use up a lot of CPU, like Norton, but if you have a fast computer this will not be a problem. Let me know if you want more advice.
a virus that is affecting many computers just get protection
It is important to have virus protection on your computer so it doesn't get taken over. Some new computers come with a virus protection program installed, but this is not universal, so you should make sure.
Well there are also some free virus protection for your computers, but with a small business computers system I would recommend checking out Norton's they have many programs to chose from.
Internet Protection is not a malware; it is the opposite. It will help you from getting malware. The best protection services are Kasperky or BitDefender.
It is among the best virus protection and file cleaning software.
Computers are typically protected from viruses by using a firewall which is usually built in and a built in Virus Protection Software, such as Windows Defender. However you can also download 3rd Party Virus Protection Software such as McAfee and much more! Be careful however, some Viruses disguise themselves as a virus protector so make sure you download the protection from safe places.
WIndows Vista or Linux OS would have the best protection.
The best protection for a virus would to take medicine. Or take an influenza shot. It is available at your local pharmacy. Drink lots of water and clean your hands.
there is absolutely no way to know the answer to this question because more computers are made every day and unless you looked at all the computers then you could not know whether or not the had virus or spy-ware protection.
Spyware Anti-Virus
Most new computers give anti virus protection software which you can renew. Alternatively try Norton or McAfee anti virus programme which you can install online and they will do the job for you.
Don't think so. However the 3DS can't get virus's from the internet like computers can.