To show all devices that ever connected to your Windows VM (computer), do the following. Open a command prompt and type
set devmgr_show_nonpresent_devices=1
Then, in the same command prompt, type devmgmt.msc to start the device manager.
In the device manager mmc choose View -> Show hidden devices.
This will be gone when you close the command prompt. To make things permanent set the system variable devmgr_show_nonpresent_devices with value 1.
Now you are set to Go! Remove all the unwanted hardware, not present in your Virtual Machine.
