I just wanted to recommend putting a different message at the end of the defrag. The error message says "Defrag Aborted. Some files were not defragmented. This operation cannot be done." I've included a screenshot.
This is most likely due to system files that are in use during a Windows defrag. It should be possible to identify locked system files and not include them in the defrag. Perhaps don't include them in the defrag or at least recognize the files that won't be defragmented, check them against a list of known locked system files and don't show the message if they match the list.
The current message makes it sound like Defraggler can't do it's job; which isn't the case. Also, I performed the defrag from the 'File List' tab. The message may display differently on other tabs. Please consider using a different error message or find a way avoiding locked files during the regular Windows defrag.
Just a suggestion. Thanks for an otherwise excellent program. I like all Piriform products and regularly recommend them to my friends.
