The dialog box that tells you that defragmentation has been stopped or completed is popping up in the upper left corner of the screen, instead of the center of the screen.
OS: Windows 10 Home edition 64-bit;
Defraggler version: 2.20.989(64-bit);
Screen resolution: 1920x1080.
Screenshot of the issue:
It could be something to do with the 'Snap' settings in Win 10 that puts new windows at the sides or corners of the desktop?
I think you may have inadvertantly dragged it into a corner once over, so now it opens there by default.
Try dragging it back to the middle and then closing it. (You may have to turn the snap off first).
I'll have a look at it. Thanks for the tip.