Trying to get a USB 3 device to mount in the Windows VM. Required:
1) connect USB drive and when Mac OS mounts it, eject it
2) update to newer version of VirtualBox software
3) when you start VM app you'll be asked to download and update extensions, do that
4) when you start windows in VM, in the device menu choose install, get the CD as a device, open it and run the windows.exe file)
5) shut down the Windows in the VM
6) in VM app click on Settings button, go to Ports tab, go to USB tab, make sure USB3 is enabled, ideally click on add device button and add device to USB device filters list.
7)
8) restart windows, if USB device doesn't appear in list of devices in FileBrowser,
- check that Mac OS hasn't grabbed the USB device, if it has eject it in the Mac OS
- choose Devices/USB and pick the USB device