cannot boot from usb and no boot menu option

[amrithmmh]

I have lenovo z585 how to install ubuntu with uefi pre installed win 8. When restart it goes directly to lenovo logo and boot.i hav turned safe boot off priority legcy ,os option other os ,fast boot off in win 8, tried with novo key and advanced startup no luck please help

[Vladlenin5000]

You need to press F12 to access the one time boot menu.

[oldfred]

While Windows 8, your install should be similar to Windows 7 in this thread, except you have secure boot, fast boot (always on hibernation) type issues in addition.
Lenovo Ideapad z585 Precise Installed wifi OK Dual Boot Win 7 no Sound SOLVED - other issues
http://ubuntuforums.org/showthread.php?t=2170099
https://help.ubuntu.com/community/InstallUbuntu11.10OnLenovoEFI/GPT/WLAN/Power/BIOS

Lenovo Community Bios Access
http://forums.lenovo.com/t5/IdeaPad-Y-U-V-Z-and-P-series/z580-can-t-access-bios-setup-or-boot-menu-after-changing-to/td-p/812737/page/2
Lenovo Active Protection System™ – for hard drive
[SOLVED] Lenovo Y580 with working bumblebee on 12.10 - NVIDIA 660M
http://ubuntuforums.org/showthread.php?t=2137318
screen brightness was 0 during installation, use f12
Lenovo Z580 laptop
http://ubuntuforums.org/showthread.php?t=2112271
http://ubuntuforums.org/showthread.php?t=1543006&p=12710212#post12710212