find duplicate files does not delete when selected

Good day.

I have V 5.66 and have used Duplicates Finder to select dupli8cate files for deletion. When the delete option is run, I receive the message that some of the files were not deleted. Can anyone explain and let me know of any workarounds?

Thanks

Jim B

What kind of files are not deleted (files extension)? Are they system files?

They may be protected from deletion.

Many system files have needed duplicates in more than one location, removing those dulicates can stop you machine from working properly.

You should only delete duplicated files when you know just what the duplicates are, ie. you own documents, photos, etc.