Not only did I turn off the secure boot but the BIOS in my laptop (not a Sony) had me turn on (enable) the following.

-> Corporate Stable Model <- "CSM"

I can't know what Sony calls this but UEFI BIOS's are new and if you find more Linux discussions you see folk struggling with the "secure" boot issues.

This does not mean your laptop can run Linux. It's rather thuggish behavior by some companies to lock down PCs to just "8". Well, we saw this coming.