diff --git a/device/win_usb/win_usb.cpp b/device/win_usb/win_usb.cpp
index 9a7ca99..da17ab4 100644
--- a/device/win_usb/win_usb.cpp
+++ b/device/win_usb/win_usb.cpp
@@ -834,7 +834,13 @@ int usb_device::transfer_bulk(unsigned endpoint, unsigned char* data, int* lengt
                 {
                     GetOverlappedResult(h, oc->over_lapped(), oc->io_bytes(), FALSE);
                     *length = *oc->io_bytes();
-                    ret = LIBUSB_SUCCESS;
+                    if (*length == 0 && oc->over_lapped()->Internal != ERROR_SUCCESS)
+                    {
+                        ret = LIBUSB_ERROR_IO;
+                        VLOG_MINI_2(LOG_LEVEL_WARNING, "Bulk-Transfer of endpoint 0x%02x failed with code 0x%08X\n", endpoint, oc->over_lapped()->Internal);
+                    }
+                    else
+                        ret = LIBUSB_SUCCESS;
                 }
                 else
                     ret = LIBUSB_ERROR_TIMEOUT;