Microsoft Windows 11 Pro
Version  10.0.26100 Build 26100
System Manufacturer Dell Inc.
System Model  XPS 8960
System Type   x64-based PC
System SKU    OBCO
Processor
BIOS Version/Date  Dell Inc. 2.16.1, 3/25/2025
SMBIOS Version 3.4
BIOS Mode UEFI

Hello all, I cannot  understand why, because I've done  it before, successfully,  I downloaded the BIOS update .exe file (XPS8960_2.18.0_x64.exe)  in a  USB stick formatted to FAT 32, I suspended  bitlocker, powered off  my PC , inserted USB ,when Dell appears  on screen  pressing F12  does  nothing, PC  continues to  boot  normally, what am I missing  here, thanking all in advance