I purchased a second hand Lenovo ThinkPad T440s which is a wonderful piece of hardware the only issue is, is that it had secure boot enabled and the bios was locked. The owner did not remember his password and therefore I couldn't unlock it. I have read around this laptop and the only possible way to solve the lock is through changing the mobo which is not worth the extra money really.
So, as I don't have access to changing boot drives and secure boot being enabled is it possible for me to install Ubuntu onto my device? I would really appreciate if you could either provide guides or link some external resources. P.S. I have separate computer if certain things will be needed to be done externally.
Thanks a lot :)