Cannot clean install Windows 7

Hi all,

i just got myself a new Laptop
ThinkPad E540 | Small Business Laptop Optimized for Windows 8 | | Lenovo (UK)
with no OS installed, since i got a free copy of Win7 professional from the university.
Well, when i insert the disk, it goes as far as the startup screen where the windows logo displays normally, but no further. It won't do anything from that point on.

I'm sorry for my bad english or if i missed something, i'm fairly new to this.
Thank you for your help.
Gumbario