Unable to boot on Linux live USB stick

Hi,

I've got a new Inspiron 5000 2-1 and I want to boot on e USB live stick to install Ubuntu on it.

With F12 key I can see the Usb stick and choice to boot on it. But after that, I get this message : "initramfs unpacking failed : Decoding failed".

I use this usb stick to install Ubuntu on a new ASUS laptop without problem, and the inspiron don't success to launch a clonezilla system too.

I'v tested with or without secure boot, with or without sata or not sata hdd without success. I can't choice legacy bios (no such option)
Could someone help me ?

Thanks.