Hi I added my custom list an "Icon" column, but I'm not able to delete it from now on:

Like here in SharePoint Designer its grayed out: enter image description here

and via the List Settings the "Delete" Button is not displayed: enter image description here

I'm collection administrator so there should be no permission issue (due the option is available and working for all other columns)

Any idea how to get rid of the column?


Try this powershell script.

Add-PSSnapIn Microsoft.SharePoint.Powershell

$web = Get-SPWeb "Web URL" 
$list = $web.Lists["List Name"] 
$field = $list.Fields["Description"] 
$field.AllowDeletion = $true
$field.Sealed = $false

Remove-PSSnapIn Microsoft.SharePoint.Powershell
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