too many security software on your system … some will argue that MBAM + Avast is okay, or SAS + Avast is okay… but hey you got them all and this generates conflicts. And no Avast doesn’t need an extra 2GB of RAM ;D … if you can add them do it, this will improve your system performance anyway and Avast drivers may start faster, again not because they need the extra RAM, but because you have too much stuff loading with Windows. Not mentioning that most of it is useless when you got avast… with the exception of mbam may be.