ok, i removed the HP_TOOLS partition a LONG LONG time ago. the question now is , the new UEFI diagnostics and firmware allows installation on a USB thumbdrive. how to update the bios? 1) the data in the thumbdrive is non bootable. 2) the BootUp Menu -> System Diagnostics -> BIOS management -> BIOS Update == The System BIOS update failed., Failed reading BIOS image file. the thumbdrive IS FAT32. formatted by diskpart command. first time in 25 years i'm having problems updating a firmware.