kikiwora

However, my UEFI BIOS verion is 2.51 __________________________________________ I fount that option, but the result wasn't great, only black screen after booting, maybe it's Kaspersky work.

It's already updated to the last version, my laptop's model is Lenovo ThinkPad Edge e530.

I's not working on my new laptop with Windows 8 x64 and UEFI BIOS, and i can't turn off uefi secure boot. How can i use it?