I have installed virtualbox on ubuntu 14.04 and installed windows xp as a guest.
i have a usb stick and an external drive (western digital) that i want to mount in win xp. the mounting itself works, but windows xp displays: "USB device not recognized" and of course i cannot access it.

here is what I have already done:

• (got windows xp updates)


• installed guest additions


• installed the extension pack


• added user to virtualbox group


• enabled usb controller + usb 2.0 (EHCI) controller


• added filters for both, my usb stick and my wd extenal harddrive


• set it to use only 1 cpu (settings -> system -> processor)