How to disconnect PST file from Outlook using Powershell?

Question

I\'m trying to write a script to disconnect PSTs files from Outlook.

I\'ve been trying with something like this:

Answer 1

To remove ALL .pst files:

$Outlook = New-Object -ComObject Outlook.Application
$Namespace = $Outlook.getNamespace("MAPI")

$all_psts = $Namespace.Stores | Where-Object {($_.ExchangeStoreType -eq '3') -and ($_.FilePath -like '*.pst') -and ($_.IsDataFileStore -eq $true)}

ForEach ($pst in $all_psts){
    $Outlook.Session.RemoveStore($pst.GetRootFolder())
}

Answer 2

According to your link the script expects Name of the attached PST, not the path. Try this:

$Outlook = new-object -com outlook.application 
$Namespace = $Outlook.getNamespace("MAPI")

$PSTtoDelete = "c:\test\pst.pst"
$PST = $namespace.Stores | ? {$_.FilePath -eq $PSTtoDelete}
$PSTRoot = $PST.GetRootFolder()


$PSTFolder = $namespace.Folders.Item($PSTRoot.Name)
$namespace.GetType().InvokeMember('RemoveStore',[System.Reflection.BindingFlags]::InvokeMethod,$null,$namespace,($PSTFolder))