Hi, Using an SD card that has a slightly 'non standard' format. Have a Windows driver that accesses this. Running Parallels 13.3.2, on a 27" Mac Retina i7, with Windows 10 1803. In the preferences, Apple SD card reader is set to attach to Windows 10. Start in the morning, stick card in, and it merrily attaches to the Windows system, and runs. Great. Problem comes when I eject the card, and then in a little while put it back. The Mac OS, then insists on trying to open this card. I've tried ejecting from the 'safely remove hardware' tab, or from the explorer. Both give the same behaviour. The tick box is there on the pull down tab saying that the 'Apple built in SDXC reader' is selected to link to the virtual machine, but when you plug the card back in, it insists on then trying to attach to the Mac... It's then a real 'pain' getting it to attach back to the virtual machine. As an experiment, I've tried with some standard cards. They do the same. It's as if once it is 'ejected' from the virtual machine, it forgets that it is meant to be attached to the drive, when a new card is inserted. So question is 'how' to keep the SD always linking back to Parallels?. Is there some 'trick' sequence I should be using to eject?. Some trick way of re-attaching?.