Sometimes however, a virtual machine is not up to the task. For this purpose, I have a cheap Acer laptop that came with Windows 8.1. But that is just Windows. So how do I make this laptop dual boot Windows 8 and Ubuntu using Ubuntu 14.x and Windows 8.1?
url: https://www.tweaking4all.com/os-tips-and-tricks/uefi-dual-boot-windows81-ubuntu/