[SOLVED] * User will not able to flash to previous BIOS once upgrading to this BIOS version

[Satearn]

What does this message mean?

Is it safe to upgrade my bios or might I completely toast my motherboard?

I need to upgrade to use Windows 11 and secure boot.

It's for a z370 pro and link is on this page:

https://www.asrock.com/mb/Intel/Z370 Pro4/index.asp#BIOS

 

[USAFRet]

It means you can't go back to a previous version.

"Safe"? Well...any BIOS update has the possibility of breaking things.

 

[SkyNetRising]

User will not able to flash to previous BIOS once upgrading to this BIOS version
What does this message mean?

That means - you can't downgrade BIOS to earlier version.

Is it safe to upgrade my bios or might I completely toast my motherboard?

If you don't do it properly, result can be bricked motherboard.

I need to upgrade to use Windows 11 and secure boot.

Windows 11 support requires UEFI boot mode and enabled TPM (Bios settings change).
It doesn't require BIOS update.