Step-by-Step Guide to Split PST Files Safely
Managing large PST files in Microsoft Outlook can become challenging, leading to slow performance and potential data corruption. This step-by-step guide helps you split PST files safely without risking data loss.
Start by creating a backup of your original PST file to ensure data security. Next, open Outlook and navigate to the “File” tab, then select “Account Settings” followed by “Data Files.” Add a new PST file where you want to move selected data.
Now, choose the folders or emails you wish to split. Use the drag-and-drop method or the “Move to Folder” option to transfer data into the new PST file. Repeat the process for different folders if needed.
For large-scale or automated splitting, using a professional PST splitter tool is recommended. These tools allow you to divide files by size, date, or folder while maintaining the original structure.
Finally, verify the newly created PST files to ensure all data has been transferred correctly. This method ensures better Outlook performance and minimizes the risk of file corruption.
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Large PST files can make Outlook slower, affect searching, and increase the risk of file-related issues. Microsoft also recommends reducing the size of large Outlook data files when possible.
Manual method:
You can create a new PST in Outlook and move older emails, folders, or other items from the large PST into it. In classic Outlook, you can open a PST through File > Open & Export > Open Outlook Data File and manage its contents from the folder pane.
However, manually splitting a large PST can be time-consuming, especially when you need to divide it by size, date, year, folder, sender, or other criteria.
For a quicker approach, SysTools PST Splitter can split large PST files into smaller parts based on different criteria while retaining the folder hierarchy and Outlook data. It can be useful when you need to process multiple or oversized PST files.
Tip: Always keep a backup of the original PST before performing any splitting or migration operation.
If you want to split your Outlook PST file then you can use MailsDaddy PST split tool. The application manages internal and external folder structure during splitting process. It has multiple split options: Email id, Size, Date and Folder-wise. The free demo edition split 20 items from each folder.