So, when Kaspersky Internet Security 2011 (11) starts doing a full scan, I can see my CPU activity going to 100%. However, the KIS process only takes 02% according to Task manager, how is this possible? When I quit the scan, CPU activity drops to normal.
Why is Kaspersky’s CPU activity not shown in process list
cpu usagekasperskyprocesstask-manager
Best Answer
Perhaps the AV scan engine is running as a service, spawning a child process for the scanning. As @Wil mentioned, I'd recommend you to launch Process Explorer and sort by CPU% when the scan is running, that should give a better idea as to where the CPU is being used.