Mass infection of viruses are not useful since it attacks the immune system. But until late studies, scientist invented vaccines which required dead or weakend virues to produce mass of B cells for the body to fight against antigens. In such ways, viruses was useful in order to invent vaccines but at the same time, it can become deadly.
useful for dieing (;
useful effect viruses
Yes Sure! because virus have no useful affects on human body.
Trojan Horse
Troja horses
Anti virus software is useful, because it protects your computer from getting infected by a computer virus. Moreover, most software will reduce the damage a virus can do to your computer. Mind you, the protection is not 100 %. New viruses come out every minute, so your computer may still be infected before the anti virus software recognizes the virus and is able to remove it.
yes, windows defender in advance mode is very useful and yes spyware is considered a virus. windows defend rated second in the most useful virus removal tool
No. I downloaded it myself, used it, have no virus protection, and it didn't give me a virus. I suggest if you are making a video for youtube about the computer, do it. It's pretty useful
You can get information about the top 5 anti virus programs on the following site: http://anti-virus-software-review.toptenreviews.com/. They have useful info.
Spyware provides you useful imput about your computer's operation and protects you against virus problems
Anti-virus software is very important to have as it protects both your computer and your personal information from the latest virus threats. This site has some very useful information: http://wiki.answers.com/Q/Is_antivirus_software_necessary
No because some people could die from getting the chicken pox on depending how bad they have it.