I have been trying different ways for the past week with no luck , I have been googling and Searching forum after forum , trying all the different ways people have done it , in face I have done it before twice now. I have tried a number of differnet USB thumb drives , 2Gb and 8 GB drives seems the most common issue I'm having is grub4dos says it can't install and goes on to installing MBR , but when I boot to the USB drive it either just says can't boot from it . or it skips step one option a