Pin items to Task bar for Default Profile

I’m deploying builds and want to pin Office icons to taskbar for all users

I’ve played with saving the taskband registry key but it seems flaky i.e. disappears

Looking at threads easy to do in powershell with something like
$item = $folder.parsename(‘Outlook.exe’)
$verb = $item.Verbs() | ? {$_.Name -eq ‘Pin to Tas&kbar’}
if ($verb) {$verb.DoIt()}

This works perfectly BUT only for the logged on user.
What I’d really like to do is to somehow do this for the Default user profile so that each new user that logs on get the correct taskbar

Thoughts ?