Этот код удаляет acl:
$acl = Get-Acl \\remote_server\share_folder\HAL.9000
$acl.Access | %{$acl.RemoveAccessRule($_)}
Этот код добавляет администратора acl:
#BUILTIN administrator
$acl = Get-Acl \\remote_server\share_folder\HAL.9000
$permission = "BUILTIN\Administrators","FullControl", "ContainerInherit,ObjectInherit","None","Allow"
$accessRule = New-Object System.Security.AccessControl.FileSystemAccessRule $permission
$acl.SetAccessRule($accessRule)
Set-Acl \\remote_server\share_folder\HAL.9000 $acl
#Domain controller administrator
$acl = Get-Acl \\remote_server\share_folder\HAL.9000
$permission = "DOMAINCONTROLLER\Administrators","FullControl", "ContainerInherit,ObjectInherit","None","Allow"
$accessRule = New-Object System.Security.AccessControl.FileSystemAccessRule $permission
$acl.SetAccessRule($accessRule)
Set-Acl \\remote_server\share_folder\HAL.9000 $acl
Надеюсь, это кому-нибудь поможет:)