Dead project ?

[naworm]

PS C:\Users\Naworz> Restart-Service wuauserv
PS C:\Users\Naworz> Install-Module PSWindowsUpdate

Untrusted repository
You are installing the modules from an untrusted repository. If you trust this repository, change its InstallationPolicy value by running the
Set-PSRepository cmdlet. Are you sure you want to install the modules from 'PSGallery'?
[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [S] Suspend  [?] Help (default is "N"): a
PS C:\Users\Naworz> Import-Module PSWindowsUpdate
PS C:\Users\Naworz> Get-WindowsUpdate

ComputerName Status     KB          Size Title
------------ ------     --          ---- -----
PC-NAWOR     -------    KB2267602    1GB Security Intelligence Update for Microsoft Defender Antivirus - KB2267602 (Version 1.429.146.0) - Current C…
PC-NAWOR     -------                10MB ASUSTeK COMPUTER INC. - Firmware - 10.1.2.1720
PC-NAWOR     -------               950KB Intel Corporation - Bluetooth - 23.130.0.3
PC-NAWOR     -D-----    KB5058411   89GB 2025-05 Cumulative Update for Windows 11 Version 24H2 for x64-based Systems (KB5058411)

PS C:\Users\Naworz> Get-WindowsUpdate -MicrosoftUpdate | Where-Object {$_.Title -like "*ASUSTeK COMPUTER INC. - Firmware - 10.1.2.1720*"} | Hide-WindowsUpdate
Get-WindowsUpdate: System.__ComObject: Connection failure, check firewall on destination machine.
Get-WindowsUpdate: System.__ComObject: Connection failure, check firewall on destination machine.
Get-WindowsUpdate: System.__ComObject: Connection failure, check firewall on destination machine.
Get-WindowsUpdate: System.__ComObject: Connection failure, check firewall on destination machine.
PS C:\Users\Naworz>
PS C:\Users\Naworz>
PS C:\Users\Naworz>
PS C:\Users\Naworz>
PS C:\Users\Naworz> Get-WindowsUpdate -IsHidden
PS C:\Users\Naworz> Get-WindowsUpdate | Where-Object {$_.Title -like "*ASUSTeK COMPUTER INC. - Firmware - 10.1.2.1720*"} | Hide-WindowsUpdate
Get-WindowsUpdate: System.__ComObject: Connection failure, check firewall on destination machine.
Get-WindowsUpdate: System.__ComObject: Connection failure, check firewall on destination machine.
Get-WindowsUpdate: System.__ComObject: Connection failure, check firewall on destination machine.
Get-WindowsUpdate: System.__ComObject: Connection failure, check firewall on destination machine.
PS C:\Users\Naworz> Get-PnpDevice -FriendlyName "*ASUSTeK*" | Select-Object FriendlyName, DeviceID

[mattcargile]

Are you on the box interactively when you run the hide. Win update apis are locked down.