hi
is microsoft security essentials and bit defender the same thing? and can i have microsoft security essentials and avast running or do they conflict?
no, they are not the same, MS security essentials is horrible, however bitdefender is one of the best, if not the best.
and i am pretty sure that MS security essentails gets turned off automatically by windows to stop the interferance between the two programs
http/chart.av-comparatives.org/chart1.php?chart=chart2&year=2015&month=9&sort=0&zoom=2
Independent testing , shows you current results , this was September.