Ubuntu 16.04 freezes on loading installation from bootable USB

My laptop is ASUS N552 Cpu : i7 6700 skylake Gpu : nvidia gtx960m dual with intel hd graphics Its working fine with windows 10 but when i try to dual boot it with ubuntu it freezes at ubuntu loading page ... :( I disabled fast startup in windows 10 , I tried with kali linux, same freezing problem when i want to login to desktop ! I think its related to Gpu drivers ...

What should i do ? How can i disable nvidia graphics ?

Thanks in advance , sorry for my bad english