First what is  If thats a date you didnt edit on  January  Second backed out Do you mean reverted Third This was not original research means you have a source ready at hand Then please cite that source Oh and should you encounter original research delete it dont sync it Fourth I am looking at your edit it didnt say MSE has been subsumedreplaced by Windows Defender in Win It said they were the same In general one should think with his brain not with his eyes Just because Windows Defender and MSE look alike doesnt mean that they are the same internally The look of MSE comes from the obscure Microsoft Forefront Client Protection But Windows Defender on Windows  is definitely not MSE It has an ELAM driver added and has no network intrusion prevention module They all consume the same AV database but that doesnt mean they use it the same way