I do keep it turned on. But I disable it from changing my power profiles. I don’t like the ability messing with stuff like that.I see. That's good enough. In general I think it's not really a CPU/IO heavy AV something like Windows Defender which suffers from high CPU usage during startup of applications and while doing moderate to heavy tasks. But anyway, the profile concept of Bitdefender sounds nice. Do you keep it turned on? (oops! that's almost a naughty sentence, lol).