If your Windows operating system does not provide USB support, proceed to the following steps and then check the Universal Serial Bus controllers option again. If your Windows operating system still does not provide USB support, contact your dealer.
When the USB device is recognized as an Unknown device
For Windows 98 or Me, some USB devices can be recognized as an Unknown device under the USB tree in the Device Manager window. If this error occurs, execute EPUSBUN.EXE on the software CD-ROM as follows:
Abort the driver installation.
Right-click on the software CD-ROM icon, and select Explore to display the files.
Double-click on the WIN9X folder.
Double-click on the EPUSBUN.EXE icon.
Eject the software CD-ROM, then re-insert the software CD-ROM into your CD/DVD-ROM drive, and follow the on-screen instructions for the driver installation.