2 days ago I've bought an HP Envy laptop, which comes with Windows 8 pre-installed. Before that I were using Yumi USB flash drive with a dozen of boot options to set-up the computers (e.g. re-partition the disk, setting up and repairing dual-boot Linux+Win7, etc.). However with HP Envy I didn't figure out, how to boot from Yumi USB flash drive. The main reason for this is probably that I've just met with UEFI and didn't figure out, how it works. Here is what I tried to boot from Yumi flash drive.
HP Envy boot options
With HP Envy I found, that if you press F11 on boot, you get a blue screen with "Recovery. Your PC needs to be repaired. A required device isn't connected or can't be accessed. Error code: 0xc0000225" message and with 3 options below:
Press Enter to try again Press F8 for Startup Settings Press Esc for UEFI Firmware Settings
Options "Enter" and "F8" do nothing (show the same blue screen again), while "Esc" leads to the following startup menu
F1 System information F2 System Diagnostics F9 Boot Device Options F10 BIOS Setup F11 System Recovery
And F9 option allows me to "Boot From EFI File" (I can browse USB flash drive to locate it, but this won't help while I don't have it). Therefore I have the following question(s).
Is it possible to create an EFI file for Yumi? Or is it a wrong way to work with UEFI computers and I should do something different to do the usual disk-OS-boot tasks?