Hi, 
Can you help me step by step to install Sierra lastest on Dell Latitude 3570 
Intel® Core i5-6200U CPU @ 2.30GHz (4 CPUs), ~2.4GHz / 8192MB RAM 
Intel® HD Graphics 520 
  
And how to setting BIOS? 
  
I have try to install but my latop loading forever on boot screen (only apple logo and loading bar) 
  
Thank you