Import PST to NSF Database by using nUpgrade.exe

PST to NSFAre you switching from Microsoft Outlook to Lotus Notes? You must be looking for a solution that can help you convert PST to NSF format so that you can access your old mailbox data in IBM Notes client. If we talk about professional solutions, there are many in the market for such purpose. Also, you can try an easy manual trick to import PST to NSF database of Lotus Notes from Microsoft Outlook with the help if nUpgrade.exe.

Think about this scenario…

Previously you were using Microsoft Outlook client for emailing purpose. Now you’re switching to IBM Notes. You have all your important emails and other mailbox data in Outlook data files called PST aka Personal Storage Table. Since IBM Notes doesn’t support PST format, you can’t access your old emails in it. If you try to open PST files in IBM Notes, you’ll find them inaccessible. You must know that IBM Notes only supports NSF aka Notes Storage Facility, a database format that stores all entire data including email messages and other business information. Now the question arises here:

How to import PST to NSF database of Lotus Notes?

There are two things you can try to import PST to Lotus Notes:

  • Get a professional converter tool to can convert PST files into NSF format, or
  • Try the nUpgrade.exe utility to migrate your personal mailbox data and contacts from Microsoft Outlook to IBM Notes.

What is nUpgrade.exe? 

The nUpgrade.exe is a part of Notes migration tools. Its default location is the directory of Notes clients program. While installing the IBM Notes on your system, you’ll get an option to install migration tools. Remember if you don’t install migration tools on your system during IBM Notes installation, you can’t use nUpgrade.exe. In such situation, you need to run the installation again on your system and this time make sure that you select the option for installing the migration tool components. Also, read Get Lotus Notes Tutorial for Lotus Notes Migration


The default location of nUpgrade.exe is
C:\Program Files (x86)\IBM\Lotus\Notes

Before running the Notes Upgrade wizard, you need to confirm the following points:

  • Instead of “Internet Mail Only”, your Microsoft Outlook is configured on the workstation as Corporate or Workgroup.
  • Your Microsoft Outlook is configured as the default mail application on the workstation.
  • The Outlook PST and/or PAB files are linked to a profile on the workstation.

Use nUpgrade.exe to PST to NSF Conversion 

After confirming the above things, follow the steps shown below:

Step 1: Go to the Command Prompt. For that, press Win+R button.

run cmd.exe

Type cmd.exe and hit Enter.

Step 2: Now you need to change to the IBM Notes client program directory.

nUpgrade.exe command prompt

Type the directory path where the Upgrade Wizard (nUpgrade.exe) is located. And then, type the command nupgrade.exe 3 to launch the Upgrade Wizard.

Step 3: The Notes Upgrade Services wizard will appear on your screen.

how to use nUpgrade.exe

Click Next to continue to continue the process.

Step 4: Now select the Outlook profile linked to the file (PST or PAB) which you want to migrate.

how to use nUpgrade.exe

Then click Next again to continue the process.

Step 5: Now select your upgrade method in which you want Lotus Notes Upgrade converts your personal information.

how to use nUpgrade.exe

You may select Express or Custom option. Click Next to continue to continue the process.

Note: If you select the Custom option of Upgrade Method, you can select the items which you want to convert to IBM Notes. But if you select Express option of Upgrade Method, this will convert all the files, i.e. PST and PAB, linked to the selected profile, to IBM Notes. The Upgrade Wizard will create the IBM Notes database in a mail folder just below the Notes client data directory.

Step 7: In the Begin Upgrade screen, click Finish to begin the process. Once the process is started, you will need to provide the IBM Notes User ID.

Step 8: You’ll be notified when the Upgrade Wizard has completed the conversion process. The files (PST or PAB) which were converted, will be appeared in the Folders view of a database, named as XXX_PersonalFolders.nsf. And the Outlook contacts which were converted will appear in the Personal Address Book on the local workstation, named as Names.nsf.

Important note

If you’re using Lotus Notes 6.5.3 or any later version, you can’t place the contacts migrated from Outlook to Notes in the local Names.nsf. Instead, it’ll migrate the contacts as a part of the XXX_PersonalFolders.nsf database. If you want to add these contacts to the local Names.nsf, you need to open XXX_PersonalFolders.nsf database by using Notes client. And then, select Actions > Synchronize Address Book.

Also, refer to this blog post – Manual Way to Convert NSF to PST Format Effortlessly

You may also try a third-party tool that will help you import PST to NSF database format of Lotus Notes. Get PST to NSF Converter of SysInfoTools Software and convert PST to NSF format of IBM Notes (formerly known as Lotus Notes). This tool supports conversion of corrupted PST files and within a few clicks, it converts them into NSF format without causing any damage or data loss. To know more about this software, please visit SysInfoTools website and download the free demo version of this software.

Watch the online video tutorial below