Deleting hidden files in external drive
Hello everyone!
My external hard disk (SanDisk 1TB) has some hidden files in the trash and I cannot delete them "The operation can't be completed because the item "x" is in use". I unhidden them to delete directly from the disk, but nothing. The trash isn't empty. I renamed them, but it didn't work.
Any successful idea to be implemented? I have checked a few entries but none has helped me.
MacBook Pro (Retina, 13-inch, Late 2013)
MacOS High Sierra