This is an issue I searched quite extensively on the web, but could not find an answer to. So probably it is not a known/common issue. I'm on Windows 7 (I could specify more about the system, if needed). When copying txt files (doesn't matter if within C: or to other drives, and it doesn't matter if they are large or small), the speed, which usually for other file types is several MB/s, slows down to sub MB/s. What could be the reason for such an odd behavior? Thank you!