On April 24, 2012, Microsoft updated its free anti-virus software from version 2 to version 4, jumping over 3 in the process. Microsoft Security Essentials (MSE) has been a good alternative for Norton. It is very fast and uses very little resources. Version 2 has been my favorite so far, and after the update, it still is.
That’s because I am disappointed that Microsoft degraded the look of MSE in version 4. The background image is gone, leaving a rendered gray to blue background in its place, similar to the first version. The icons in the tabs are now gone, and the status bar at the top is now a solid color bar, with no gradual fading or “glossiness”.
Under the history tab, the same options remain. They are, however, moved around a bit.
Under the settings tab, the real-time protection section is now left with one setting; turn on real-time protection. The scan all downloads, monitor file and program activity on your computer, and enable behavior monitoring have all been removed. I don’t know if the removed options are integrated into the real-time protection option. The Microsoft SpyNet has been renamed to MAPS.
Finally, MSE now refers “computer” to PC. Other then that, MSE 4 works the same as version 2.