Now let say for an instant you’re trying to access a particular file saved in your Office system from your home is missing or have been blocked due to some intruders (hacker) activity. Such a situation could be really hard to ignore, now what possible step one should take to avoid such mishappenings? This is where the role of antivirus comes to play. An antivirus program running in your system not only protects yours files from hackers but also helps in removing viruses, malwares and Trojan. In other words we can say, an antivirus acts as a shield between your system and outsiders.