I'd love to know what you did. I've run this since the beta (just updated to the full version) and the only process it runs is MSSecEs.exe which rarely takes up more than 1% of my cpu (2% max) and maybe 8 MB of RAM doing a full scan. So I have to say, your results are NO typical and I think your MsMpEng.exe is from something else you installed, not MSE.

Your Freedom

Okay, now that Microsoft makes an antivirus, someone explain to me why they haven't simply dedicated all this effort to debugging Windows, closing security holes and stabilizing code? Can anyone now sufficiently explain their motivation to do so? I don't see anymore reason for Microsoft to clean up the mess that they made, now that they've thrown a board over the pothole instead of repaving the frickin' road.

If Microsoft makes Windows secure and stable, then, in theory, the antivirus industry is out of business. Someone, please, convince me to remove my tinfoil hat.