UNLOCK BIOS "Acer Aspire E1-572"

Hi Bios unlockers, can you help me to unlock this bios

Bios version: V2.17
Result.rar link : https://www.sendspace.com/file/zqxr1d
SO: Windows 7 Ultimate SP1 64Bits

Bios Link: http://global-download.acer.com/GDFiles/BIOS/BIOS/BIOS_Acer_2.17_A_A.zip?acerid=635472372552472352&Step1=NOTEBOOK&Step2=ASPIRE&Step3=ASPIRE%20E1-572G&OS=ALL&LC=en&BC=ACER&SC=PA_6



I need to increase the memory on the VGA Integrated "Intel HD Graphics 4400"(Sorry for my english, I don't speak very well cause i'm brazilian)