> But I can not find any difference in the files opened in TPP10 (Viewing window) either "use embedded Jpeg" is checked or not.
When a raw file is converted into an image, that takes some 3-12 seconds, depending on your system's speed. An embedded Jpeg opens almost instantaneously. So, that's one way to tell the difference. Another way is to look at the status bar in the viewer. Somewhere at the left, it shows the size and bit depth of the image. For instance, "4000x3000-24". If it says 24 (bits), it's a JPG. If it says 48, it is the actual raw data (assuming that your plug-in options were set to 'Load 16 bits per channel').