@clocks: No one here says that ZA does not use RAM. The point is that RAM says nothing on lightness of a software. Its simply plain wrong. There will be obviously users that do not like RAM usage while others do not care as far as the software runs light on the system. No one is forcing you to use it. If you don't like it or it does not work for you then don't use it. Just don't come here every time with the same music. You keep hammering on ZA since 2008, enough to look to your post history. Once you don't like KAV, next RAM usage, Next ZAPRO, next ZA Extreme. It has been going since forever. Yes, we understood! ZA is not for you and you do not like it. No need to pestering all these years. And no need to go on the personal, this is a friendly platform of security enthusiasts. @IceCube1010: just monitor vsmon during AV updates and you will see jumping the RAM (also dending on the amount of signature digested). This should be both on desktop and laptop. Then it will go back to normal but really slow. Thats why it can be confusing as sometimes you see it on the high and there is no download of AV updates.