Razer Viper Mouse Driver

Fixes: You will need to install the drivers with administrator permission. - Uninstall all existing Razer drivers - Reboot the PC - Ensure that the mouse works WITHOUT any drivers before you install the above. Please do not forget to check with our site as often as possible in order to stay updated on the latest drivers, software and games. Note: Try to set a system restore point before installing a device driver. It will help you restore system if installed driver not complete.