Unlock option to edit shared video memory

[chaozduke]

Hi,

I hope someone can assist me with my issue

here are the details of my machine

System Information
------------------
Time of this report: 12/11/2017, 08:06:38
       Machine name: 
   Operating System: Windows 7 Ultimate 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_rtm.101119-1850)
           Language: English (Regional Setting: English)
System Manufacturer: Acer
       System Model: Aspire 4750
               BIOS: AcerSystem v2.2
          Processor: Intel® Core™ i3-2330M CPU @ 2.20GHz (4 CPUs), ~2.2GHz
             Memory: 8192MB RAM
Available OS Memory: 8072MB RAM
          Page File: 4910MB used, 11230MB available
        Windows Dir: C:\Windows
    DirectX Version: DirectX 11
DX Setup Parameters: Not found
   User DPI Setting: Using System DPI
 System DPI Setting: 96 DPI (100 percent)
    DWM DPI Scaling: Disabled
     DxDiag Version: 6.01.7601.17514 64bit Unicode

I updated my bios but still the advanced tab is not present

Here is the version

BIOS_Acer_1.24_A_A

Thank you all in advance and have a great holiday!