As to use of Defender ...
Windows Defender is anti spyware (not anti-virus) .... my research suggests that a lot of people recommend using a realtime anti-spyware product along with anti-virus to act a second line of defence. Am I wrong?
most av have already spyware-definitions on board. (or r u talking bout malware?)
definitly u can use, whatever u want... just want 2 add that defender has one of the lowest!! dedection rates in different av/mw test. furthermore it tends 2 load its signatures into memory, wich often conflicts with other sec-progs, like eg. avast or slows ur system. but it's up to you...
i, for myself, would never use 2 resident scanners, as the danger of interfering each other is much too high, even malwarebytes antimalware had troubles with avast at start of 5.0. i only use antimalware on demand. but again, it's up to you.
asyn
