Quote Originally Posted by tec0 View Post
After you killed AVG and did a cold boot what was your over all CPU usage? I think you might have a worm.
Just did the test again. Win XP SP3 32bit (we can't use Vista / Win7 cause it simply doesn't work with our large format Oce printer ), Intel Core(TM)2 6600 @ 2.40GHz, 2GB RAM, 150GB HDD (60GB free). ClamWin & M$ Essentials as AV.

Shut down, waited for about 1min and pressed the power button. After logging in allowed a further 1min for all the background stuff to load. Pressed Ctrl+Shift+Del & clicked the "Task Manager" button. Noted CPU hovered between 0% and 2% ... seems one of the the svchost processes are still doing "something". RAM usage is around 160MB.

Decided that should be fine. Double-clicked the AutoCAD icon from desktop & hit my watch's stopwatch button. The MsMpEng.exe process immediately started using the CPU - hovers around 3% to 15%. After about 3sec the acad.exe process appears in the Task manager and runs at 20% to 50%. When ACad's splash screen opens (about 10sec after double click) acad.exe is using about 40MB and overall CPU usage is still up-and-down from 20% to 60% - with acad using most, MsMpEng the rest (it seems - would be nice if there was a log).

ACad's window appears on around 20sec, but is still a white blank window up to 38sec. When it starts showing menus, toolbars, palettes. Finally available and responsive to input at 53sec. Not as good as it was without any AV, but a S#1T load better than with AVG Corporate.