Your system will still work without the security feature, but what are the risks if you disable it?

Make sure you've updated before the deadline.

Windows 10 KB5078885 ESU out with Secure Boot 2023, replacing expiring Secure Boot certificates from 2011. But it's a staged roll out.

It’s the first thing you need to do when you get a Secure Boot option grayed out in the BIOS. Although it is not necessary, some configurations require users to set ...

Its probably just the boot order. Go into the BIOS and make sure its trying to boot from the correct hard drive first. If you aren't sure what drive you are supposed to boot from, just switch whatever ...