This shows a Boot-time scan in progress on my other computer, after it found three infected files in Java. It later found and also deleted one other. These were all in files that presumably should have been removed when I uninstalled the Java a few days ago. I'm showing the above in case you're also using Windows 7 SP1 and would like to check your own computer for similar files.
This Boot-time scan done by Avast is a special scan that you can program it to do on a one-time basis, after which it resets itself to normal. The scan is done while a rebooting action is in progress, but before any of the normal Windows files are loaded, so it can find things that would otherwise be unavailable to it after Windows loads. In this respect, it is a lot like Emco's 'MoveOnBoot', because it does its thing in the midst of a rebooting process, after the shutdown, but before the reloading processes for Windows begin again.
It works very well, and there's only one problem with it - it takes so long to do it, you could reformat your drive and re-install the operating system from scratch, and be up and running again long before this scan finishes on a computer which has a dual-boot setup (two separate operating systems) and a
'Windows Old' folder from a previous installation of Windows. But I wanted to try it, and from this, I've discovered where to look in this other computer to find any similar infections. So it wasn't exactly a waste of time. It just took too long.
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