Install-WindowsUpdate does not refresh update status in GUI

[timbck2]

Environment:
PSWindowsUpdate v2.2.1.5
Windows Server 2022 w/Windows Powershell that comes with the OS
Internal WSUS server managed using the Windows Server Update Services management console

Based on the suggestions from this URL: https://serverfault.com/questions/395417/microsoft-windows-install-updates-and-restart-instead-of-install-and-shutdown/825111#825111, I installed PSWindowsUpdate, then used this sequence of commands to check WSUS for available updates, then install them and reboot the server:

Get-WUInstall
Install-WindowsUpdate -AcceptAll -AutoReboot

After the server came back up, I opened the Windows Update panel in the Settings app, and the updates (there were three of them) were still showing as "Pending Install", even though I had watched them get installed before the reboot. So I clicked the button to install all updates, and they immediately went from "Pending Install" status to installed, which I verified by looking at the Update History.

So apparently the Install-WindowsUpdate command is not refreshing the update status when it finishes.

[vecerap]

This is because Windows Update cache is stuck. What I suspect is WU does not expect other application would perform update without GUI intervention. If you run script for cleanup, the GUI will be after reboot normal:

 # Stop the necessary services
    Stop-Service -Name "wuauserv" -Force
    Stop-Service -Name "cryptSvc" -Force
    Stop-Service -Name "bits" -Force
    Stop-Service -Name "msiserver" -Force

    Write-Host "Deleting SoftwareDistribution..."
    rm -r -fo "C:\Windows\SoftwareDistribution"
    Write-Host "Deleted SoftwareDistribution"

    Write-Host "Deleting catroot..."
    rm -r -fo "C:\Windows\System32\catroot2"
    Write-Host "Deleted catroot"