The biggest threat to any person with a system was that of a virus. But what is this virus actually? A virus is the child of one of the greatest brains Steve Jobs. It is inserted into one’s computer system to cause harm. Once virus attacks became common Microsoft join hands with Norton to produce world’s first antivirus – a software aimed at finding and treating the viruses. But with time these attacks became more frequent and lethal as many new types of virus were being discovered. Sensing the opportunity of tremendous growth, any more companies jumped into the market of antivirus manufacturing and started selling their product. Some of the prominent names are Avast, McAfee, KasperSky, AVG, Avira, Quick Heal and recently Net Protector. Apart from these there are several other brands of antivirus present in the market. But one major drawback of installing these antivirus softwares is that they make the processing of your system very slow. For example, Norton Antivirus uses 50% of total CPU memory when running. And one more reason for people not purchasing the antivirus is their cost. Best antivirus software’s are often costly and the one which is cheap generally fails to provide the security we desire.

Keeping these two factors in mind, Microsoft decided to develop its own antivirus program which could be available free of cost runs on minimum possible memory and provides adequate security. And this is how Microsoft Security Essential came into existence. This antivirus is available free of cost on Microsoft’s site for windows users. An easy to install and easy to use antivirus Microsoft Security Essential provides all the facilities which you get from an antivirus for which you have to pay. It was needed to be downloaded separately in windows 7. But in windows 8 and windows 8.1 it comes from the name of Windows defender. Once you open Microsoft Security Essential you get the option to schedule a scan for your system. One of the highlighted facilities of Microsoft Security Essential is its real time scanning facility. You can turn it on or off any time you wish. The extremely large virus dictionary and definitions of Microsoft Security Essential enable it to detect most of the viruses the very moment they come out of their dormant state.

By default the CPU, memory use for MSE (as Microsoft Security Essentials is popularly known) is set to 90%, but can be brought down to 10 % any time the user wishes to thus effectively reducing the CPU usage and giving faster system performance as compared to other antivirus programs. MSE gives its users an option to exclude a particular file or folder from the scan. But you are advised to do so only at your own risk. To keep up with ever evolving viruses the definition and dictionary of MSE needs to be constantly updated. Whenever you are connected to internet MSE automatically downloads its latest updates and definitions and is once again ready to fight the viruses. So if you long for faster system performance and don’t want to spend a penny for system security, but still demand for a quality protection from viruses Microsoft Security Essential may be just the thing for you.