To be fair, this happens to me also in Debian Gnome, but very very rarely. On Windows, it keeps me from ejecting the drive until after I try it 4-5 times. Every time.
In any case, lsof can help identify the culprit.
lsof | grep DRIVENAME should give which program is keeping it.
Same when you try to remove an external drive.
deleted by creator
To be fair, this happens to me also in Debian Gnome, but very very rarely. On Windows, it keeps me from ejecting the drive until after I try it 4-5 times. Every time. In any case, lsof can help identify the culprit.
lsof | grep DRIVENAMEshould give which program is keeping it.deleted by creator