For those new to Framework or this Insyde bios…
To disable Secure Boot, bang on the F2 key after turning on the system to get into the full ‘setup’ menu.
If you just go into setup from hitting enter after the system doesn’t boot you don’t get the Secure boot options.
Banging on F2 gets you the option to Administer Secure Boot
Now I can get back to installing CachyOS without having to muck with secure boot stuff.
Thanks @Toby_Q, that worked!
Maybe your pillow always be the right temperature
Thank you! Adding information to get indexed, if you try to boot off of a USB drive on the Framework desktop (e.g. for first time OS install) and see “EFI USB Device (DEVICE_NAME) boot failed.” that can be as a result of secure boot. I disabled secure boot and everything started to work.
I really wish the people who made the BIOS would improve their error messages 
Thank you so much for revealing the secret menu! Three usb sticks and hours later, I’m finally able to install an OS. I’ve done this dozens if not hundreds of times over the years, and this is the first BIOS that stumped me.
Thank you. I thought i was in the bios for like 40 mins being like “wtf how is there not secure boot setting?”
Let’s put it somewhere different that everyone else to express our artistic individuality XD
Wow, that did it. Thanks!
I had to try a different keyboard to get to the secret Secure Boot bios menu, so if anyone else is having trouble with it, that’s also worth a try.
I cant find the secret menu in f2 BIOS to turn off secure boot - was in security and boot advanced and nothing about secure boot
I don’t have a FW Desktop, but others have posted that you have to hit the F2 key on power up rather than use the setup menu that comes up when boot fails. There are different Setup menus, and only one of them has the Secure Boot setting.
Thanks found it
Note that some keyboards default to the F-keys being media control, where you have to hit a key labeled “FN” or something like that first (I noticed that in years past on some Microsoft keyboards). There is typically a setting on the keyboard to have the F-keys default to F-keys instead of media control also.
Okay I spent 30 minutes trying to figure this out… you have to press F2 when the “Framework” logo is showing, not after - otherwise you get into a different BIOS looking menu…. I have to say that’s confusing that F2 is the same button but different results depending on precisely what point in the boot process you are in and that first Framework logo is like 1 second long.
Thanks mate ! Wasted more time than I want to admit on this. Very helpful.
You are the real MVP
“secure” boot should be opt-in(default off), not opt-out