Hi, I have a my brother in laws HP Elite Book 8740w Mobile workstation, I have been trying to install XP from flash for a few days, and keep getting the dreaded bsod STOP 0X0000007B (0XF78D2524) (0XC00000034) (0X00000000, 0X000000000). I believe this is related to XP not being able to find the SATA drive. So heres a description of what I have done so far I used Nlite to slip stream the unpacked chipset drivers downloaded off HP support site and then used wintoflash to make a bootable usb drive result fail. Next I created a flash usb xp without drivers and used F6 floppy downloaded from intel and installed driver at this point from a usb floppy result fail. he wants it installing in ahci mode so I know SATA drivers are required I installed windows 7 and it identified the driver as intel 5 series 6 port sata controller so I know/think this is the right driver and is included in hp downloaded chipset drivers as win 7 shows this im at a loss and not sure what else to do? its the core I7 version 4gb ram 250gb toshiba sata drive Please help a first time poster I have gone insane PS. I read somwhere that the usb 3 controller driver not being part of xp could also cause problems any thoughts?