LSU Client

A PowerShell module that partially reimplements the "Lenovo System Update" program for convenient, automatable and worry-free driver and system updates for Lenovo computers.

Install-Module -Name 'LSUClient'

Highlight features

• Does driver, BIOS/UEFI and firmware updates
• Run locally or through PowerShell remoting on another machine
• Allows for fully silent and unattended updates
• Supports not only business computers but consumer lines too (e.g. IdeaPad)
• Full Web-Proxy support including authentication
• Concise, helpful and easy-to-read output
• Ability to download updates in parallel
• Accounts for and works around some bugs and mistakes in the official tool
• Free and open-source

Examples and tips

Typical use for ones own computer:

$updates = Get-LSUpdate
$updates | Save-LSUpdate -ShowProgress
$updates | Install-LSUpdate -Verbose

To select only packages that can be installed silently and non-interactively:

$updates = Get-LSUpdate | Where-Object { $_.Installer.Unattended }
$updates | Save-LSUpdate -Verbose
$updates | Install-LSUpdate -Verbose

Dealing with BIOS/UEFI updates (Version 1.0.2+ only)

It is important to know that some Lenovo computers require a reboot to apply BIOS updates while other models require a shutdown - the BIOS will then wake the machine from the power-off state, apply the update and boot into Windows. So as to not interrupt a deployment or someone working, this module will never initiate reboots or shutdowns on its own - however it's easy for you to:

1. Run Install-LSUpdate with the -SaveBIOSUpdateInfoToRegistry switch
2. If any BIOS/UEFI update was successfully installed this switch will write some information to the registry under HKLM\Software\LSUClient\BIOSUpdate, including the String "ActionNeeded" which will contain "REBOOT" or "SHUTDOWN" depending on which is required to apply the update.
3. At any later point during your script, task sequence or deployment package you can check for and read this registry-key and gracefully initiate the power-cycle on your terms. I recommend clearing the registry values under HKLM\Software\LSUClient\BIOSUpdate afterwards so you know the update is no longer pending.

If you want to exclude BIOS/UEFI updates, simply do so by their category:

$updates = Get-LSUpdate | Where-Object { $_.Category -ne 'BIOS UEFI' }

For more details, available parameters and guidance on how to use them run Get-Help on the functions in this module.

Misc

• This module does not clean up downloaded packages at any point. This is by design as it checks for previously downloaded packages and skips them. The default download location is $env:TEMP\LSUPackages - you may delete it yourself
• Only Windows 10 is supported. Windows 7 compatibility is theoretically feasible for as long as Lenovo provides support for it, but I won't do it. This module makes use of modern PowerShell and modern Windows features and I personally have no interest in Windows 7.
• If you explicitly Save-LSUpdate before using Install-LSUpdate the whole operation will be faster because when calling Save-LSUpdate directly it downloads the packages in parallel, but calling Install-LSUpdate first will download then install each package after the other
• The Module currently does not check whether an available update has already been installed. This will lead to some of the same updates being found every time you run it - reinstalling a driver does not hurt or will sometimes simply fail - see issue #4