Hi, Ron and Yardbird, MBAM freezes at around 21,000+ files, but it runs VERY slowly even getting to that point. It's exactly the same issue I had back in May. But it's been working fine up til this latest version. Seems like it was a new version last time that caused the freezing, and the next version cleared it up. Strangely, it happens only on my old Dell desktop computer, not on my new Dell laptop, even though I'm running WinXP SP3 on both. (One difference: The problem computer is running XP Home, the other one XP Pro.) Last May I thought it was because I was using Norton on my old computer, but then I switched to Avira. All was well til I updated to Avira version 9 (the free one), and then I had a freezing problem for a while. It finally went away, and MBAM and Avira have worked well together until the latest MBAM version. I suspect eventually whatever glitch there is will be worked out. In the meantime, I'll try running MBAM in Safe Mode again, since that worked in the past when it froze. Thanks much! Jo-Anne