need some help, everytime I try to remove a USB hard disk I get a message saying it is not possible because some program is using it.
There is no program (to my knowledge) using the disk, I've tried to wait about half an hour then I got the same message again.
I disabled write-caching for the disk so I can (in theory) unplug the disk without safe-removing it, nonetheless I'd really like to know what is causing the problem and fix it.
The disk is connected to the PC via a USB hub.
I have no issue in removing USB flash drives.