My pc (windows XP ) was attacked on New Years Day by a trojan. Anyway since then I cannot use any of the 4 USB ports. I have tried my Sony digital camera, an MP3 player and a flash stick all to no avail. A message appears that says USBSTOR.SYR File Missing.
I looked in the device manager and there is a yellow exclamation mark against the Game Port for Creative. Does this have any bearing and if it does how do I correct it.