Just got a new Lenovo laptop and its running windows 10. I really dislike windows 10! I want add another partition and install Windows 7. Traditionally used the bios slic method, its been sometime. Wondering if there was a slic injector that could do this? Cons and pros and If anyone can point out any tutorials that would be great. Not sure how the UEFI system works and whether the slic method was possible. Laptop is a Lenovo Y700.