What is the exact model number of your system? And if it is for a BIOS update then the version of Windows you are running does not matter.
I am getting a mandatory Dell, Inc. - Firmware - 0.1.14.0  I believe it is for Windows 10  I was forced to update to window 11 Is it safe to allow it to update, do I have a choice?  
Firmware - 0.1.14.0