mckarft
for Windows 8.1 install the new BIOS and Driver
Bios F.24
http://ftp.hp.com/pub/softpaq/sp63001-63500/sp63210.exe
Intel Rapid Storage Technology
Intel Smart Connect-Technologie
HP System Event Utility
http://ftp.hp.com/pub/softpaq/sp64501-65000/sp64569.exe
HP 3D DriveGuard-Software
IDT High-Definition (HD) driver first uninstall the old
Intel® Iris™ and HD graphics Driver for Windows 8.1 64
Intel® PROSet WLAN
Intel WIDI Autoupdate