Error message: invalid magic number unaligned pointer

[joel38]

Hi. So I was using windows on my PC and decided to try Ubuntu. I made a bootable usb using unebootin on my mac. I plugged the USB on my PC and after start up and selecting Install Ubuntu I get this message :
invalid magic number
unaligned pointer

So I'm not sure whats wrong..

[hzeztctm]

I have the exact same problem.
Unaligned pointer 0x8cb16c68
Anyone can help?