Avast scans stuff when computer is idle

[REDACTED]

Is there any way to disable this behavior?
Whenever I leave my computer, after 5 minutes or so the I hear the fan spinning like hell and apparently it's Avast scanning.

I don't want this. I find it completely useless. Waste of energy for no benefit. The point of having an antivirus is to scan NEW files, not the same files over and over again.

[Pondus]

this is how antivirus realtime protection works ..... any file that moves when computer is on, is checked by the antivirus

I hear the fan spinning like hell

have you dusted your computer?
do you use screensaver?....have you selected avast screensaver scan?
do you have more then one antivirus installed?

[REDACTED]

the computer is new, i dont think dusting is a prob.

How to disable screen saver scan? I don't have a screen saver in Windows.
But the option in avast cannot be disabled?! I unchekced loop scanning and checked Do not scan if running on batteries.

I only have one antivirus.

The high-cpu usage and avast icon animation stop immediately when computer goes out of idle.

[Secondmineboy]

Maybe this is the automatic Windows maintenance which is only running when the computer is idle.

[Pondus]

is windows index running?
http://windows.microsoft.com/en-us/windows/improve-windows-searches-using-index-faq#1TC=windows-7