This has been covered as a High CPU issue but for me that is not the case. The mbamservice.exe continuously (more than 90% of the time) is placing a heavy disk load on my system. I use teh AnVir Task Manager free program to monitor things. Task manager doesn't show me disk usage (I'm on XP SP3). It is always the highest disk usage process on my system. And it can leap up to 5x 10x 50x the disk usage of any other process - especially those which are trying to write to the disk and therefore it slows up my entire system dramatically! Specifically, say I'm working with ACDSEE (a picture viewer/editor) and I save a simple 5 meg JPG. Instead of taking 1 second flat as it might without MB loaded, it can take from 10 to 55 seconds. Yes, 55 seconds! During this time, ACDSEE is using 1 % CPU, mbamservice is using 2% CPU but mbamservice is generating 17 mb/s of disk traffic, ACDSEE is generating about .5 What is going? This has been happening since version 1.4 something and upwards. I have the latest paid version of MB.