I've been using AVG (free) for the past few years and have been pretty satisfied. However, after the last upgrade, my computer has really been running slow, and doing scary things. So, per recommendations from Cnet, I removed it and installed AVAST (free). Man, my computer is breathing again. It is actually running better than it has in years. But, I don't see where you can schedule any nightly virus checks like AVG. Not sure if this is a big deal. Seems like if it is running all the time, it should not be letting any nasty things in to scan for. But, just wondering if any of you guys are running this, and how often you run the scan feature. Thanks!