At YB Series laptop is installed, usually Windows 7 Home Premium 32 or Windows 7 Starter version of these heavily curtailed and many owners want to upgrade to the maximum that is Windows 7 Ultimate or Professional. Update provided Microsoft is performed with great difficulty, or for any reason at all not satisfied! Therefore, there is a radical decision to install a new operating system Windows 7 Ultimate or Professional or Windows 8. Of this Article is to help you to install the drivers and their installation order . Proper installation of the drivers and compliance with the success of the installation sequence of stable work of the laptop and all the hot keys Fn: volume, brightness , Mute , and additional custom keys . Sony VAIO VPCYB ALL DRIVERS For WINDOWS 7 WINDOWS 8: Link 1: Download Letitbit.net Link 2: Download Turbobit.net Warning if the link broken or not working , you can write to me about it and I will try to solve this problem. Support my group on Facebook.com ...