I think that there should be an exclusion function in Defraggler. Why? It's because my computer has a file that cannot be defragmented (I have no idea why) I selected that one file to defragment (with the new version - right click the file in the file list and click defragment highlighted) and left it there for like 15-20 minutes. However, Defraggler showed the file name, followed by 100% in the pop-up after clicking Defrag. Because of this, I am unable to defragment my entire drive due to that one file. Defraggler will always be stuck halfway, attempting to defrag the file but never finishing its task.