Try booting your computer in sfae mode and check if you are able to use it there. If not then probably the key board is faulty. You can confirm it by connecting it to another system. If you are able to use it in safe mode then re-install the drivers.
Answers & Comments
Try booting your computer in sfae mode and check if you are able to use it there. If not then probably the key board is faulty. You can confirm it by connecting it to another system. If you are able to use it in safe mode then re-install the drivers.