A06 is the latest bios for your model. A07 is for M17 and is also for windows 7. Might be time to get a new computer.

https://www.dell.com/support/home/us/en/04/product-support/product/alienware-aurora-r3/drivers 

If you have the M17--

https://www.dell.com/support/home/us/en/04/drivers/driversdetails?driverid=r309749

Installing the wrong bios can brick your computer.