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HP POWER MANAGER DEFAULT PASSWORD PASSWORD

Multiple old passwords can be specified (separated by a comma). OldSetupPassword – The old setup password(s) to be changed.

HP POWER MANAGER DEFAULT PASSWORD PASSWORD

SetupPassword – The current setup password or password to be set.

There are also parameters that are used to specify the new and old BIOS passwords.

PowerOnClear – Clear an existing power on password.

PowerOnSet – Set a new power on password or change an existing power on password.

SetupClear – Clear an existing setup password.

SetupSet – Set a new setup password or change an existing setup password.

The script accepts parameters that tell it which actions to perform. This script takes the basic commands we just looked at and adds logic to allow for a more automated password management process.

6 – Access Denied (Usually caused by an incorrect BIOS password)įor more detailed information on the HP WMI interface, refer to the official documentation: Manage-HPBiosPasswords.ps1.

4 – Failed (Usually caused by a typo in the setting value).

This encoding must be specified even when the password value is blank (look at the password set or password clear examples).įor reference, these are the possible return codes for the SetBIOSSetting method: This is done by adding “ ” in front of the password. Additionally, when specifying the password values, the encoding of the passwords must also be specified. The format for changing a password is (Password Type, NewPassword, OldPassword). In this case, we are changing the “Setup Password” setting.

This method allows for changing HP BIOS settings. The HP_BIOSSettingInterface WMI class contains a method called SetBIOSSetting. $Interface.SetBIOSSetting("Setup Password","","" + "OldPassword") $Interface.SetBIOSSetting("Setup Password","" + "NewPassword","" + "OldPassword") $Interface.SetBIOSSetting("Setup Password","" + "NewPassword","") $Interface = Get-WmiObject -Namespace root/hp/InstrumentedBIOS -Class HP_BIOSSettingInterface #Connect to the HP_BIOSSettingInterface WMI class This information can be obtained from the HP_BIOSSetting WMI class under the root/hp/InstrumentedBIOS WMI namespace. The first thing that needs to be done is to determine what passwords are currently configured. This script deals specifically with HP BIOS passwords, so in this post, I will only be discussing the classes related to password management. This means that we can use PowerShell to directly view and edit BIOS settings without the need for a vendor specific program. HP provides a WMI interface that can be used for querying and modifying BIOS settings on their hardware models. The script can be downloaded from my GitHub. In this post, I’ll cover the basics of how the script works and some limitations of the script.

Once again, the goal was to have a script that could automatically set, change, or clear BIOS passwords while providing logging and optional user prompts. I liked how that process worked, so I decided to create a similar process to handle HP BIOS passwords. In my last blog post, ( Lenovo BIOS Password Management), I talked about managing Lenovo BIOS passwords with PowerShell. This post was updated on September 18th, 2020.