I just uninstalled my antivirus software (too bad I had paid for it for 2 more years) and installed Microsoft Security Essentials. Installation was simple. Just a 7 MB download, and then the updates; all took only 5 minutes. It was worth the risk. It has already detected two major viruses that existed in my machine which my old virus guard didn't detect. In terms of performance it seems like this is far ahead than any thing out there. Over the last couple of years I have used Norton, McAfee, CA, Kasprasky, OneCare etc, but I think the simplicity in this out beats all ... it loads faster, performs the scans like a charm, and the security seems much better ... i'm not 100% convinced yet though.

Surprisingly the UI is so simple. None of those unwanted useless memory hungry features are not there. If you are really tired of those memory hungry bloated security software (bloatware); and if you haven't already tried this yet, I would like to highly recommend. The best part is it FREE.