03-17-2013 03:06 PM
I cannot find any Windows 8 drivers for your system on Lenovo's website. Drivers are sometimes compatible with different versions of operating systems than those listed, so I would try the drivers here and see if it helps. You will likely need the driver for activation of the card and the driver itself, so make sure you get both of them. If it does not help, then you will be able to uninstall it from Device Manager.
Hope it helps,