There are many useful PowerShell modules available from the PowerShell Gallery. One helps you managing updates. To download and install it, run:

 
PS> Install-Module -Name PSWindowsUpdate -Scope CurrentUser -Force
 

It adds a list of new commands related to Windows Update:

 
PS> Get-Command -Module PSWindowsUpdate 

CommandType Name                    Version Source         
----------- ----                    ------- ------         
Alias       Clear-WUJob             2.1.1.2 PSWindowsUpdate
Alias       Download-WindowsUpdate  2.1.1.2 PSWindowsUpdate
Alias       Get-WUInstall           2.1.1.2 PSWindowsUpdate
Alias       Get-WUList              2.1.1.2 PSWindowsUpdate
Alias       Hide-WindowsUpdate      2.1.1.2 PSWindowsUpdate
Alias       Install-WindowsUpdate   2.1.1.2 PSWindowsUpdate
Alias       Show-WindowsUpdate      2.1.1.2 PSWindowsUpdate
Alias       UnHide-WindowsUpdate    2.1.1.2 PSWindowsUpdate
Alias       Uninstall-WindowsUpdate 2.1.1.2 PSWindowsUpdate
Cmdlet      Add-WUServiceManager    2.1.1.2 PSWindowsUpdate
Cmdlet      Enable-WURemoting       2.1.1.2 PSWindowsUpdate
Cmdlet      Get-WindowsUpdate       2.1.1.2 PSWindowsUpdate
Cmdlet      Get-WUApiVersion        2.1.1.2 PSWindowsUpdate
Cmdlet      Get-WUHistory           2.1.1.2 PSWindowsUpdate
Cmdlet      Get-WUInstallerStatus   2.1.1.2 PSWindowsUpdate
Cmdlet      Get-WUJob               2.1.1.2 PSWindowsUpdate
Cmdlet      Get-WULastResults       2.1.1.2 PSWindowsUpdate
Cmdlet      Get-WURebootStatus      2.1.1.2 PSWindowsUpdate
Cmdlet      Get-WUServiceManager    2.1.1.2 PSWindowsUpdate
Cmdlet      Get-WUSettings          2.1.1.2 PSWindowsUpdate
Cmdlet      Invoke-WUJob            2.1.1.2 PSWindowsUpdate
Cmdlet      Remove-WindowsUpdate    2.1.1.2 PSWindowsUpdate
Cmdlet      Remove-WUServiceManager 2.1.1.2 PSWindowsUpdate
Cmdlet      Set-PSWUSettings        2.1.1.2 PSWindowsUpdate
Cmdlet      Set-WUSettings          2.1.1.2 PSWindowsUpdate
Cmdlet      Update-WUModule         2.1.1.2 PSWindowsUpdate 
 

Most commands require an elevated shell to work properly but basic information is available for everyone.

 
PS> Get-WULastResults
WARNING: To perform some operations you must run an elevated Windows PowerShell console.

ComputerName    LastSearchSuccessDate LastInstallationSuccessDate
------------    --------------------- ---------------------------
DESKTOP-8DVNI43 22.01.2020 11:29:24   22.01.2020 11:29:52        



PS> Get-WUApiVersion
WARNING: To perform some operations you must run an elevated Windows PowerShell console.

ComputerName PSWindowsUpdate PSWUModuleDll   ApiVersion WuapiDllVersion                                                                  
------------ --------------- -------------   ---------- ---------------                                                                  
DESKTOP-8... 2.1.1.2         2.0.6995.28496  8.0        10.0.18362.387  
 




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