I haven't used anything but MSE since I jumped onto the surface line with an SP2..
Today I got a 6 month trial of bit defender IS 2015, figured id give it a go as Antimalware Service Executable was pissing me off cranking cpu up during idle times on the sp3 , causing fan to come on at weird times..
Is there anything I should know to tweak it, or what not to do with it on a surface?
Also, to those who use it, do you pay for it or just run free trials / freeware?