World is going to more and more dependent on web and also web is going to be more unsafe place due to viruses & malwares. You have to keep your system virus free in order to secure your data. You might be using any paid antivirus software program for this purpose which will keep your system updated and restrict these suspected viruses. Protection from viruses is certainly needed but giving a good amount of money may stop you from purchasing these programs. So you can become hassle free from this problem if you are you using any of following operating system from Microsoft like Windows 7, Windows Vista or Windows XP. Microsoft provides a security tool named as “Microsoft security essential” to its users in order to keep their system virus free.
The most amazing feature of this tool is that it will never become expired and will keep downloading system updates on regular basis. What you have to do is just to go on Microsoft official website and download Microsoft security essential from there. After successful download you have to install this program on your machine and set automatic updates as default. Right now this excellent feature is not available with Windows 8 but with other operating systems you can get this feature absolutely free.
Therefore you have no need to get worried about viruses and malwares if you are a Microsoft user.