Bernie,

Thank you for your reply! That’s exactly what I thought! I was convinced that avast! was able to remove those files, as before booting Windows they couldn’t be in use or in some other way unaccessable, but this didn’t work out!

So, unfortunately, we have to accept that: also in other situations I noticed that the Boot Time Scan option doesn’t work at all! I think this is a great bug in avast!

Does someone has the same experiences? If so, please, let me know.