First, confirm that you have the latest drivers installed for the device. If you do not have the latest drivers, you can download them from the manufacturer's website.
If you have installed the latest drivers and the device is still not working, try troubleshooting by opening Device Manager and following these steps:
From the taskbar, right-click Start and select Task Manager. In Task Manager, click View by category and then click Input Devices. Under The devices that are not functioning, right-click your input device and select Properties. On the Driver tab, confirm that the driver has been updated. If there is an update available, click Update now. Click OK to close the Properties window. Click Disable to stop using this input device. Right-click your input device and select Enable to reactivate it.