You need to transfer your Outlook emails, calendar, and contacts to a new Windows PC. Your data is stored in a local PST file, not on a Microsoft 365 or Exchange server. This article explains how to safely copy the PST file and connect it to Outlook on your new computer.
Key Takeaways: Moving an Outlook PST File
- File > Account Settings > Data Files: Locates the exact path of your PST file within Outlook before you move it.
- Copying the .pst file via external drive or network: Safely transfers the data file without using Outlook’s import/export wizard.
- File > Open & Export > Open Outlook Data File: Connects the copied PST file to your Outlook profile on the new computer.
Understanding Outlook PST Files and the Transfer Process
A PST file is a personal storage table that holds your local Outlook data. This includes emails, contacts, calendar entries, and tasks for accounts like POP3, IMAP, or archived items. Moving it manually is often faster and more reliable than using Outlook’s export tool for large files.
Before starting, ensure Outlook is closed on both the old and new computers. You will need an external USB drive, a network share, or cloud storage with enough space for the file. The process has three main parts: finding the file on the old PC, copying it, and adding it to Outlook on the new PC.
Prerequisites for a Successful Move
Your new computer must have a compatible version of Outlook installed, such as Outlook for Microsoft 365, Outlook 2021, or 2019. The PST file format is generally compatible across these versions. Verify you have administrator rights on both machines to copy files and change Outlook settings.
Steps to Transfer and Connect Your PST File
Follow these steps in order to move your data without loss.
- Locate your PST file on the old computer
Open Outlook on your old PC. Go to File > Account Settings > Account Settings. Switch to the Data Files tab. This list shows all data files connected to your profile. Note the full path for the PST file you want to move, typically found in your user’s Documents folder. - Close Outlook and copy the file
Exit Outlook completely. Use File Explorer to navigate to the file path you noted. Copy the .pst file. Paste it to your external drive, a network location, or a cloud service like OneDrive. Do not move the original file, just copy it. - Transfer the file to the new computer
Connect your external drive to the new PC or download the file from your cloud storage. Copy the PST file to a permanent location on the new computer, such as the Documents folder. Avoid placing it on the desktop or in temporary folders. - Open Outlook and add the data file
On the new computer, open Outlook. Go to File > Open & Export > Open Outlook Data File. Browse to the location where you saved the copied PST file. Select it and click OK. The file will now appear in your folder navigation pane. - Set the new data file as default if needed
If you want new POP3 emails to deliver to this file, set it as the default. Go to File > Account Settings > Account Settings, select the Data Files tab, choose the PST file, and click Set as Default. Restart Outlook for the change to apply fully.
Common Mistakes and Things to Avoid
Be aware of these pitfalls to ensure a smooth transition.
Outlook says the PST file is in use or cannot be accessed
This error means Outlook is still running in the background. Use Ctrl + Shift + Escape to open Task Manager. Look for any Outlook.exe processes on the Details or Processes tab and end them all. Then try copying the file again.
The PST file does not appear in the folder list after adding it
First, check the folder view setting. Click View > Folder Pane > Normal. If it still does not show, the file may be corrupted. On the new PC, use the built-in repair tool: close Outlook and search for SCANPST.EXE. Run it and select your PST file to check for errors.
Moving the file while Outlook is open
Never copy or move the PST file while Outlook is running. This can cause data corruption. Always confirm Outlook is fully closed via Task Manager before handling the data file.
Manual PST Transfer vs. Outlook Import/Export Tool
| Item | Manual File Copy Method | Outlook Import/Export Wizard |
|---|---|---|
| Speed for large files | Faster, direct file copy | Slower, reprocesses each item |
| Risk of corruption | Lower if Outlook is closed | Higher during lengthy export |
| Data integrity | Preserves folder structure exactly | Can sometimes miss properties |
| Best for | Moving a single, large PST file | Selectively exporting certain folders |
You can now access your old Outlook data on your new computer. For better performance, consider archiving old items to a separate PST file. An advanced tip is to use the Windows command line tool ROBOCOPY with the /J flag for faster, more reliable large file transfers over a network.