cant install kali linux 2019 on uefi only laptop

hi
i am facing a problem when I am trying to install kali linux 2019 on my laptop. The laptop is Lenovo Ideapad 330s. The Option choose Legacy as my primary option is grayed out or locked. I am trying to install via USB since the laptop doesnt have any disc drive. The USB is detected by the BIOS and I have choosen it as primary boot option. But it isnt working and OS from my SSD is booting everytime. Can anyone help to fix this ? please...

What program did you use to create your live usb stick?
I?ve always used Rufus and it has yet to fail me.

I have also used Rufus. But then I used Fedora media writer and used the option to write a custom ISO image and i was able to successfully install kali in uefi mode