Dear users i am using a 15" Late 2011 Macbook Pro with a SSD on the normal slot and a extra HDD in a HDDCady. OSX is on the SSD (Mavericks GM1) Windows 8 was on the HDD. Oke just this week Windows 8.1 releases so i downloaded this update, installing and all works well only after fist boot i lost my mouse pointer. After searching for the problem i found out that a couple of driver's are gone after this update and the Apple Bootcamp software generates a blue screen. The drivers that are missing are, Sound, BT, Touchpad and function key's. After searching on the internet i found the Sound and BT driver but i got stuck on Touchpad and Function key's What i tried so far? Searching by hand for drivers trough Control panel, system > No Luck. Installing Touchpad ++ > No Luck. Searchin trough Driver genius > No luck. Somebody having the same issue? Or known a good solution. Thnx in advance.