Why do people keep saying MSE (Microsoft Security Essentials) is good and we should stick with it ? 99% of the viruses we get comes from being online. With that said MSE is completely garbage. It only "protects" after you are infected. Lets face it people now days half of the viruses/trojans/malware come from simply browsing webpages you do not have to download something to become infected. With that said why do you say MSE is good ? It does not scan the webpages (you get no warning to stop and go back) you go to therefore if you browse a rogue page you are got. This I know for a fact MSE does not check webpages. Do yourself a favor people and disable Windows Defender and seek a 3rd party protection. I highly recommend Panda Cloud Antivirus and Trend Micro Titanium. Those two are fantastic and a couple more to try is BullGuard Internet Security and ESET NOD32 Antivirus. Those two are not as good as the first two I mentioned but work really well.