Alienware Area-51 R2 Bios 13 issues

I do know for other dell machines you can simply flash an older BIOS and would downgrade. You could try it on the machine see if it works. 

I have Rev 12 and it will not let me downgrade. 

What happens when you try a downgrade? From the sound of it looks like you could have disabled BIOS downgrades.

It said that Revision 13 does not allow downgrades

I went through all the bios options.  Looks like it's missing.  I wonder if intel asked for it to be disabled for this fix?

You sound like an advanced user, but see my post here anyway about back-flashes in general.

https://www.dell.com/community/Alienware-Desktops/X51-R3-BIOS-1-2-11-slow-start-and-shutdown/td-p/5708864/page/2

Obviously, you will have to do it from inside the BIOS itself (or inside UEFI boot environment).

It should be in the UEFI boot options.

I've had my own issues since the bios 13 update.  Since that update, I have noticed issues with the mouse. I will move the pointer a bit across the screen, and for a second or so it may "freeze" or stall before moving again as i complete the mouse motion.  This has only been an issue since the bios 13 update.

Elpro I can boot from a usb drive.  Alienware_Area_51_R2_A12 is the firmware.  Do I just need to put this on the drive and boot from the USB to get it to load and install?

I think Intel **bleep** this one up royally.  I hope they will have a fix for these issues other than reverting to the old "flawed" Bios.

I have no idea whether that would work but you could try it. On other Dell machines, there is such option but not all Dell machines are the same.