I have had Windows Defender disabled forever. I used to run Bitdefender and they just don't work well with any security programs. Different story.......... I still have WD disabled now that I have NIS 2013-2014 installed. I keep getting updates for Windows Defender from windows updates. Should I install them even though Defender is disabled? Should I enable WD and exclude? What is the basic setting for this. I am running win 7 x64 on a Acer 8943g laptop.