This is a lazy post, kind of, my /friend/ has a laptop, first device I've seen with secure boot and because it's not my laptop I'm slightly lazy towards fixing it. I do not support secure boot so I'd never buy one with it on, I support secure booting but not the way it's been done btw.
With this in mind I did some reading, and some more reading and it's hard to care but I cannot let him use Ubuntu, It's now more crap than ever (I left with 11.04 now it's .. wow) I left for MATE btw
Is there a guide, a how to, something with clear instructions (this is not something I've ever had to do as I said, or anything like) on how to get it working, Secure boot cannot be disabled - first thing we checked for.
There probably is like a critical term I missed when conducting searches, I tried small varients of "Linux mint secure boot guide" but when I encountered talk of other boot loaders, stuff like that, I was reduced to (almost) the guy who just tries stuff in the hope it works with no understanding, only I chose to back out and try and read.
Please do help me with this, I recommend Linux Mint MATE to all potential converts (as opposed to Ubuntu, all those years ago) but this is a BIG problem if it wont actually work, I cannot recommend Ubuntu because well... Look at it.