Sharing USB key in VBox 7 from host to guest leads to "blank" crashed explorer

(drivers/usb/usbport/endpoint.c:792) USBPORT_OpenPipe: DeviceHandle - B40ADCE0, FdoDevice - B491C030, PipeHandle - B40ADCE8

(drivers/usb/usbport/endpoint.c:1178) USBPORT_ReopenPipe ...

(drivers/usb/usbehci/usbehci.c:713) EHCI_CloseEndpoint: EhciEndpoint - B408FF24, DisablePeriodic - 1

(drivers/usb/usbhub/usbhub.c:4540) USBH_RegQueryDeviceIgnoreHWSerNumFlag UNIMPLEMENTED. FIXME

(drivers/usb/usbhub/usbhub.c:70) USBH_CompleteIrp: Irp - B4072720, CompleteStatus - C00000BB

(drivers/usb/usbhub/usbhub.c:70) USBH_CompleteIrp: Irp - B4072720, CompleteStatus - C00000BB

(drivers/usb/usbhub/usbhub.c:70) USBH_CompleteIrp: Irp - B4072720, CompleteStatus - C00000BB

(drivers/usb/usbport/iface.c:636) USBHI_SetDeviceHandleData: UNIMPLEMENTED. FIXME.

(drivers/usb/usbhub/pnp.c:2173) USBH_PdoStartDevice: call IoWMIRegistrationControl UNIMPLEMENTED. FIXME

(drivers/usb/usbport/endpoint.c:792) USBPORT_OpenPipe: DeviceHandle - B40ADCE0, FdoDevice - B491C030, PipeHandle - B4072EF0

(drivers/usb/usbport/endpoint.c:792) USBPORT_OpenPipe: DeviceHandle - B40ADCE0, FdoDevice - B491C030, PipeHandle - B4072F0C

(drivers/usb/usbport/endpoint.c:603) USBPORT_ClosePipe

(drivers/usb/usbport/endpoint.c:680) USBPORT_ClosePipe: TtExtension - 00000000

(drivers/usb/usbport/endpoint.c:603) USBPORT_ClosePipe

(drivers/usb/usbport/endpoint.c:680) USBPORT_ClosePipe: TtExtension - 00000000

(drivers/usb/usbport/endpoint.c:792) USBPORT_OpenPipe: DeviceHandle - B40ADCE0, FdoDevice - B491C030, PipeHandle - B4075550

(drivers/usb/usbport/endpoint.c:505) USBPORT_DeleteEndpoint: Endpoint - B41825B0

(drivers/usb/usbehci/usbehci.c:713) EHCI_CloseEndpoint: EhciEndpoint - B418269C, DisablePeriodic - 1

(drivers/usb/usbport/endpoint.c:505) USBPORT_DeleteEndpoint: Endpoint - B40C3E68

(drivers/usb/usbehci/usbehci.c:713) EHCI_CloseEndpoint: EhciEndpoint - B40C3F54, DisablePeriodic - 1

(drivers/usb/usbport/endpoint.c:792) USBPORT_OpenPipe: DeviceHandle - B40ADCE0, FdoDevice - B491C030, PipeHandle - B407556C

(drivers/usb/usbstor/disk.c:142) SRB_FUNCTION_CLAIM_DEVICE

(drivers/usb/usbehci/debug.c:36) : QH->sqh.HwQH.CurrentTD       - 646b300

(drivers/usb/usbehci/debug.c:37) : QH->sqh.HwQH.NextTD          - 646b200

(drivers/usb/usbehci/debug.c:38) : QH->sqh.HwQH.AlternateNextTD - 646b200

(drivers/usb/usbehci/debug.c:39) : QH->sqh.HwQH.Token.AsULONG   - 80088d40

(drivers/usb/usbport/usbport.c:494) USBPORT_USBDStatusToNtStatus: Urb - B40B138C, USBDStatus - c0000004

(drivers/usb/usbport/usbport.c:494) USBPORT_USBDStatusToNtStatus: Urb - B40B138C, USBDStatus - c0000004

(drivers/usb/usbport/usbport.c:2281) USBPORT_CompleteTransfer: Irp - B408FBE0 complete with Status - c0000001

(drivers/usb/usbstor/error.c:66) Sending Request DeviceObject B40E3800, Urb B40E5878

(drivers/usb/usbstor/error.c:85) USBSTOR_ResetPipeWithHandle Status 0

(ntoskrnl/fstub/disksup.c:1458) FSTUB: entry is invalid

(ntoskrnl/fstub/disksup.c:1459) FSTUB: offset 0x6f742065

(ntoskrnl/fstub/disksup.c:1460) FSTUB: length 0x65686375

(ntoskrnl/fstub/disksup.c:1461) FSTUB: end 0xd4dc83da

(ntoskrnl/fstub/disksup.c:1462) FSTUB: max 0xf00000

(ntoskrnl/fstub/disksup.c:2145) FSTUB: Drive 0XB406B990 has no valid MBR. Make it into a super-floppy

(ntoskrnl/fstub/disksup.c:2148) FSTUB: Drive has 7864320 sectors and is 0x000000f0000000 bytes large

(dll/win32/kernel32/client/loader.c:386) LoadLibraryExW(rshell.dll) failing with status c0000135

fixme:(dll/win32/comctl32/toolbar.c:403) [0003011A] TBSTYLE_REGISTERDROP not implemented

fixme:(dll/win32/comctl32/toolbar.c:403) [00050134] TBSTYLE_REGISTERDROP not implemented

fixme:(dll/win32/comctl32/toolbar.c:5546) hwnd=00050134 wParam 00000001 lParam 00000000

aclmulti.cpp:62: Unexpected failure (punk->QueryInterface(IID_PPV_ARG(IACList, &fObjects[fObjectCount].pACL)))=80004002.

err:(dll/win32/shlwapi/autocomp.cpp:51) punk->QueryInterface failed: 0x80004002

WARNING:  NtUserLockWindowUpdate at win32ss/user/ntuser/ntstubs.c:914 is UNIMPLEMENTED!