Switching BIOS Defaults between BIOS Default and Factory Default - dell/EUCTechHub GitHub Wiki

BIOS (Basic Input Output System) Defaults

Dell Devices have different BIOS defaults like Last Known Good, Factory Defaults, and BIOS Default. If you want to compare your existing settings with defaults you need to decide first about which base you want to use, default you will get by WMI (Windows Management Instrumentation) is the BIOS Defaults, but this is not what you will see if you are looking in BIOS after unpackaged a device.

This article descript how you can change the defaults.

Preparation:

  • Install Dell Command Monitor

How you can change the defaults which could be read by WMI

Save your existing values first:

Get-CimInstance -Namespace root/DCIM/SYSMAN -ClassName DCIM_BIOSService | Invoke-CimMethod -MethodName SaveBIOSDefaults -Arguments @{ConfigType=3}

Load Factory Defaults:

Get-CimInstance -Namespace root/DCIM/SYSMAN -ClassName DCIM_BIOSService | Invoke-CimMethod -MethodName ResetBIOSDefaults -Arguments @{DefaultType=2}

Posible values of DefaultType

image

Now you can check if it works:

Get-CimInstance -Namespace root/DCIM/SYSMAN -ClassName DCIM_biosenumeration > C:\mydownloads\Factorydefaults.txt

Moving back to old default values:

Get-CimInstance -Namespace root/DCIM/SYSMAN -ClassName DCIM_BIOSService | Invoke-CimMethod -MethodName ResetBIOSDefaults -Arguments @{DefaultType=3}

Sample result:

You are can see now the CurrentValue shows differently. image