truthbrazerzkidai.blogg.se - Dell bios defaults vs factory settings

#Dell bios defaults vs factory settings how to
#Dell bios defaults vs factory settings password

Acceptable values for this parameter are (BuiltInSafeDefaults, LastKnownGood, Factory, UserConf1, UserConf2)

SetDefaults – Use this parameter to instruct the script to set all BIOS settings to default values.

AdminPassword – Used to specify the BIOS password.

Using this switch with the SetSettings switch will also cause the script to ignore any settings specified in the body of the script. If used with the SetSettings switch, this acts as the location where the script will read BIOS settings to be set from. If used with the GetSettings switch, this acts as the location where a list of current BIOS settings will be saved.

CsvPath – Use this parameter to specify the location of a CSV file.

Settings can be specified either in the body of the script or from a CSV file.

SetSettings – Use this parameter to instruct the script to set specific BIOS settings.

The settings will be displayed on the screen by default.

GetSettings – Use this parameter to instruct the script to generate a list of all current BIOS settings.

This script takes the basic commands and adds logic to allow for a more automated settings management process. Status Codesįor reference, when calling the Set or SetAttribute or SetBIOSDefaults methods, the possible status codes are:įor more detailed information on the Dell WMI interface, refer to the official documentation. The type of text is 1 (plain text), the length of the byte array is set to $Bytes.Length, and the byte array is $Bytes.

#Dell bios defaults vs factory settings password

When a password is set, these arguments are set to 1,$Bytes.Length,$Bytes. The type of text is 0 (None), the length of the byte array is 0, and the byte array itself is 0. When no password is set, these arguments are set to 0,0,0.

The byte array containing the encoded password.$Encoder = New-Object 8EncodingĮach of the methods used to modify BIOS settings starts with 3 arguments. When a BIOS password is set, it must first be encoded before it can be passed to a method. The above information contains examples for modifying the BIOS with and without an existing BIOS password. For more information about this class, see this post Dell BIOS Password Management – WMI. In this script this method is used to test the existing BIOS password. This class contains a method called SetNewPassword. It is located in the root\dcim\sysman\wmisecurity namespace. The seventh WMI class is SecurityInterface. $BootOrderInterface.Set(1,$Bytes.Length,$Bytes,"UEFI",$NewBootOrder.Count,$NewBootOrder) #Set the UEFI boot order (BIOS password is set) $BootOrderInterface.Set(0,0,0,"UEFI",$NewBootOrder.Count,$NewBootOrder) #Set the UEFI boot order (BIOS password is not set) $NewBootOrder = "Windows Boot Manager","Onboard NIC(IPV4)","Onboard NIC(IPV6)" $BootOrderInterface = Get-WmiObject -Namespace root\dcim\sysman\biosattributes -Class BootOrderInterface #Connect to the BootOrderInterface WMI class This list includes the majority of the configurable BIOS settings. This class is used to return a list of all BIOS settings with a set of predefined values. It is located in the root\dcim\sysman\biosattributes namespace. The first WMI class is EnumerationAttribute. This script uses 7 of the Dell provided WMI classes.

This means that we can use PowerShell to directly view and edit BIOS settings without the need for a vendor specific program. The script can be downloaded from my GitHub: Dell, WMI, and PowerShellĭell provides a WMI interface that can be used for querying and modifying BIOS settings on their hardware models (only applies to models released after calendar year 2018).

Because of this, older Dell hardware will still require the use of the DellBIOSProvider PowerShell module. One caveat for this new method is the WMI classes are only supported on Dell hardware released to market after calendar year 2018. This allowed me to create a new version of the Dell BIOS Settings Management script that does not require any additional content to function. Thankfully, Dell recently released a technical whitepaper documenting WMI classes that can be used to directly modify BIOS settings without needing an outside program or PowerShell module. This method works, but I was not completely satisfied with it, as the PowerShell module needs to be downloaded and installed on every system the script runs on. The method described in that post uses the DellBIOSProvider PowerShell module.

#Dell bios defaults vs factory settings how to

Earlier this year, I wrote about how to manage Dell BIOS settings using PowerShell.