Z270 Pro4 after update, lost UEFI boot option

Sandbird wrote: I got the Z270 Pro4 board, and i just updated to 2.20 bios version, but i forgot to backup my settings first and now my boot up options dont include the UEFI boot option that i used to have. If i remember correctly i used to have something like this (where it says UEFI: WDC): I haven't touched my SSD or changed anything there...The EFI partition is clearly visible : Does anyone have any ideas ? Thanks

Anytime you do a UEFI/BIOS update, you will lose any profiles (settings backups) anyway, so saving them would not have helped.

What you do need to do is reset your previous UEFI/BIOS settings that enabled UEFI booting, correct?

You must have had either the CSM option set to Disabled, or with CSM enabled, you had the CSM sub-option Launch Storage OpROM Policy set to UEFI Only.

Configure the CSM option as you had done previously, save and exit the UEFI/BIOS, and then go right back into the UEFI and check the Boot order again. You MUST save and exit the UEFI after configuring the CSM option, as it won't be applied until you do.

The boot entry for a UEFI booting Windows installation is normally Windows Boot Manager, possibly followed by the drive's name. I don't know how exactly you installed Windows for UEFI booting, or how many drives you had active in the PC when you installed Windows, or which drive is really the Windows drive. You seem to be saying that a WDC drive is the OS drive, while it shows an Intel SSD as the OS drive in your picture.

Does the PC boot Windows with the UEFI defaults after the update?