Delete Sealed column for SharePoint List Using Powershell

Sealed columns means, you do not see delete button and you cannot delete columns manually.

Follow below steps to delete Sealed columns:

$site = Get-SPSite “Site Url”
$web = $site.OpenWeb(“site URL”)
//$web = Get-SPWeb -identity SubSite URL
$list = $web.Lists[“ListName”]
$field = $list.Fields[“Field Name”]
$field.AllowDeletion = “true”
$field.Sealed = “false”
$field.Delete()
$list.Update()
$web.Dispose()

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