How to Add Multiple PST Files to Outlook at Once? Solved

How to Add Multiple PST Files to Outlook at Once via PowerShell & Script

Use the script written below to insert multiple PST file into Outlook at once. For how to use the execution guide of the script please go through the below-provided phase-wise step-by-step process.

#Set this to the folder where your PST files are located
$pstFolderPath = "C:\Path\To\PST_Files"
# Create an Outlook application object
$outlook = New-Object -ComObject Outlook.Application
$namespace = $outlook.GetNamespace("MAPI")
# Get all .pst files from the folder
$pstFiles = Get-ChildItem -Path $pstFolderPath -Filter *.pst
# Loop through each file and add to Outlook
foreach ($pst in $pstFiles) {
$fullPath = $pst.FullName
try {
$namespace.AddStore($fullPath)
Write-Host "Added PST: $($pst.Name)"
} catch {
Write-Host "Failed to add PST: $($pst.Name) - Error: $_"
}
}
# Done!
Write-Host "`nAll done!"

Phase 1: Save the Script as Written Above as a .ps1 File

1. First, copy and paste the script to import multiple PST files into Outlook in your Notepad.
2. Now, go to the File tab >> Save As
3. After that, type Add-PSTs.ps1 in the file name field.
4. Next, select the Save As Type as All files (*. *)
5. Finally, choose the destination location and click on Save.

Phase 2: Run the Script in PowerShell

1. Initially, search for Windows PowerShell in the Windows search bar.
2. Next, choose to Run as Administrator.
3. Now, use the cd command to navigate the file location where .ps1 is stored. For example cd “C:\Users\YourName\Desktop”.
4. Lastly, run the script by typing “.\Add-PSTs.ps1”.