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How to Split PST File in Outlook 2019, 2016, 2013, 2010 Manually

When the PST file size exceeds the maximum file size restriction, it may result in data loss and damaged data items. The larger a PST develops, the more it becomes a source of worry for Outlook users. As a result, you’ll need to use specific techniques to keep the size of your Outlook PST file under control and prevent your machine from running out of space. In addition, because PST files are now in Unicode format, they are more prone to corruption, and big PST files slow down Outlook’s performance.

As a result, we’ve offered several solutions for dividing an oversized PST file into multiple smaller PST files. All versions of Outlook 2019, 2016, 2013, 2010, and 2007 mailboxes are compatible with the techniques.

Why is it necessary to split a large PST file?

There are a variety of reasons for dividing big PST files, some of which are listed below:

  • Because of the large size of the PST file, MS Outlook’s performance and speed begin to suffer.
  • If the PST file is out of capacity or has minimal storage space, users are denied the ability to save data items to the folders of the PST file.
  • When a large PST file exceeds its proper size, the data in the PST file becomes unavailable to users.

Splitting an Oversized PST File Using Manual Methods

For splitting big PST files, MS Outlook does not have an integrated function. As a result, we discovered workaround techniques for splitting PST files in Outlook 2019, 2016, 2013, 2010, and 2007 that may be done manually.

  1. Import/Export Process Reduces PST Size
  2. To manage large PST files, use the Move to Folder option.
  3. Reduce the size of your PST files by using the Archive Wizard.

Method 1: Import/Export Process Reduces PST Size

The Import/Export Process is used to move data files into and out of MS Outlook and divide PST files.

The steps listed below will help you through the process of dividing PST files:

  • Step 1: Open Microsoft Outlook and select File from the menu bar.
  • Step 2: Select Account Settings >> Account Settings from the drop-down menu.
  • In the dialogue box, click the Add button under the Data Files tab.
  • Step 3: To create a new PST, put in a name and choose Outlook data file (.pst) as the file type.
  • Step 4: Go to Data Files to see the updated PST.
  • Step 5: Select File >> Open & Export >> Import/Export from the File menu.
  • Step 6: In the Import and Export Wizard, select Export a File and then click Next.
  • Step 7: Select Outlook Data File (.pst) in the Export File box and click Next.
  • Step 8: Select the folders you want to export and select the Include Subfolders box to include subfolders in the export.
  • Step 9: Next, browse to pick the place where the exported file will be saved, as well as whether or not to allow duplicate entries to be exported. Finally, click Finish.
  • Step 10: Create a password for the exported PST file, or cancel it.

Method 2: To manage large PST files, use the Move to Folder option.

You may also use the Move to Folder option to divide big PST files in another workaround way. Follow the step-by-step instructions below to get started:

  • Step 1: Open Outlook and go to file>> Account Settings >> Account Settings on the File tab.
  • Step 2: Add a new PST file, go to Data Files and select the Add button.
  • Step 3: Navigate to Home.
  • Open your Outlook profile’s default PST file.
  • Pick the things you wish to move to the new PST file you created in Step 2.
  • Step 4: To do so, select Copy to Folder from the Move button on the ribbon.
  • Step 5: Select the PST file to which all of the chosen data items from the default PST file will be transferred.
  • Step 6: You can minimize the size of the default PST file by deleting the duplicated objects.

Method 3: Reduce the size of your PST files by using the Archive Wizard.

  • Step 1: Open MS Outlook and go to File >> Info >> Tools >> Advanced. Get Rid of Old Stuff
  • Step 2: Click Browse to save the Archive file to the appropriate location after selecting a folder to Archive, Archive older things, and date to Archive older items.

With this method, you may shrink the size of your PST file and store older data items to the proper area within Outlook, where you can access them when needed.

Manual Techniques for Splitting PST Files Have Limitations:

The manual techniques for dividing big PST files listed above have specific restrictions for Microsoft Outlook users.

  • It takes a long time to complete this procedure.
  • It is not possible to ensure data security and integrity.
  • Data loss is a genuine possibility.
  • To divide a PST file, you can’t only rely on methods.
  • Technical know-how was needed.

The Best Method for Splitting a PST File Without Outlook:

The manual methods for splitting big PST files are effective and assist in avoiding corruption and errors. However, a third-party application is the ideal match if you want a solution that works quickly and doesn’t require you to install Outlook on your PC to divide PST files. There are numerous tools on the market, but Aryson PST Split Tool is the one that IT professionals suggest for quickly completing the PST Split operation.

This utility is your one-stop-shop for splitting PST files with 100% accuracy and no data loss. The software makes it simple to divide Outlook data elements like emails, contacts, calendars, tasks, etc.

To divide a large PST file, use the instructions below:

  1. Install and run Aryson PST Splitter as administrator.
  2. Select the PST file by clicking on the Add files option.
  3. Select the PST file and press the open button.
  4. You may now examine the selected file and proceed by clicking Next.
  5. Check the folder from the tree structure after that.
  6. You can choose the split option that best suits your needs and then click the Next button.
  7. Now, specify the size of the PST file to be divided.
  8. Select a location to save the PST files by clicking the choose button.
  9. Click the select button if you wish to modify the short file path.
  10. To complete the procedure, press the Split button.

Final Thoughts:

As previously noted, there are several ways to divide large PST files in MS Outlook that have exceeded their storage limitations or are going to exceed their maximum storage size constraints. As a result, both manual and automatic approaches have been described for your comfort and convenience.

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