Some more information:

When I remove the hardware and plug the USB drive again, it shows new
hardware found. At this moment, the device shows on the "Safely Remove
Hardware" list. However, once a drive letter is assigned to this device, it
is removed from the "Safely Remove Hardware" list again!

Is it possible that some viruses will cause this situation? If so, anyone
know what viruses? I am using Norton 360 and I don't think it can detect all
popular viruses.

Best regards,
Chris Lee.

"Chris" wrote:

> Recently, when I plugged in USB flash drive or card reader, the "Safely
> Remove Hardware" list never show them anymore. It only shows the plugged
> infra-red device.
>
> Anyone who can help me to solve this problem? I would like these devices
> showed on the list again or otherwise I don't know how to safely remove them.
>
> Thank you very much for your kind help!