在Windows 11中，使用PowerShell，我正试图从任务栏中解钉微软商店，从开始菜单中解钉ESPN & Spotify。

function unpin_taskbar([string]$appname) {
    ((New-Object -Com Shell.Application).NameSpace('shell:::{4234d49b-0245-4df3-b780-3893943456e1}').Items() |
        Where-Object{$_.Name -eq $appname}).Verbs() | Where-Object{$_.Name.replace('&','') -match 'Unpin from taskbar'} | ForEach-Object{$_.DoIt()}
}
function unpin_startmenu([string]$appname) {
    ((New-Object -Com Shell.Application).NameSpace('shell:::{4234d49b-0245-4df3-b780-3893943456e1}').Items() |
        Where-Object{$_.Name -eq $appname}).Verbs() | Where-Object{$_.Name.replace('&','') -match 'Unpin from Start'} | ForEach-Object{$_.DoIt()}
}
foreach ($taskbarapp in 'Microsoft Store') {
    Write-Host unpinning $taskbarapp
    unpin_taskbar("$taskbarapp")
}
foreach ($startmenuapp in 'ESPN', 'Spotify') {
    Write-Host unpinning $startmenuapp
    unpin_startmenu("$startmenuapp")
}

Microsoft应用商店已成功取消固定，但接下来的两个失败。这是输出。

unpinning Microsoft Store
unpinning ESPN
You cannot call a method on a null-valued expression.
At C:\Users\Administrator\Desktop\repo\general\rundeck\windows\unpin_windows_apps.ps1:7 char:5
+     ((New-Object -Com Shell.Application).NameSpace('shell:::{4234d49b ...
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull
 
unpinning Spotify
You cannot call a method on a null-valued expression.
At C:\Users\Administrator\Desktop\repo\general\rundeck\windows\unpin_windows_apps.ps1:7 char:5
+     ((New-Object -Com Shell.Application).NameSpace('shell:::{4234d49b ...
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull

我做错了什么？