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.
If your Outlook PST file has grown too large and started causing slow performance, crashes, or sync issues, splitting it is the safest fix. I recently dealt with this exact problem and used Shoviv PST Splitter Tool to sort it out — here's the process I followed, step by step:
Honestly, what stood out to me was how clean the whole process was — no data loss, no corrupted folders, and no need to touch Outlook settings manually. It handled a fairly large PST file without lagging or crashing, which is more than I can say for a couple of free tools I tried earlier.
If you're stuck with an oversized PST file, I'd genuinely recommend giving Shoviv PST Splitter a try. There's a free demo version too, so you can test it on your own file before deciding to buy — that's what convinced me it was worth it.
Read more: https://marketplace.microsoft.com/en-us/product/web-apps/shovivsoftwarepvtltd1648288209598.outlookpstsplitter
Splitting a large PST file into smaller parts can make Outlook data easier to manage, archive, and back up. First, create a backup copy of the original PST file and close Outlook if it is currently accessing the file. Next, use a dedicated PST split tool and select the large PST you want to divide. Depending on your requirements, you can split the file by size, date range, year, or folder.
For Windows users, the MailsDaddy PST Split Tool can split large PST files into smaller parts while retaining emails, attachments, metadata, and folder structure. It supports ANSI and Unicode PST files and does not require Microsoft Outlook to be installed. After the process, check the newly created PST files and open them in Outlook to verify the folders and emails. Keeping the original PST as a backup until verification is complete is also a useful precaution.
To split PST files safely, start by keeping a backup of the original Outlook file and decide how you want the mailbox data separated. Once that is clear, the process is fairly simple:
For this type of work, I would suggest checking GainTools Split PST Software. It supports ANSI and Unicode PST files and processes one PST at a time.
The free trial lets you test the splitting process before using the full version.
Outlook can be slowed down, and it can be tough to manage your emails with large PST files. Splitting a PST file into smaller sections can avoid such problems. You may use a trusted PST splitter program like DataVare Outlook PST Split Expert to divide big files with emails, attachments, and folder structure intact. Choose the PST file, select your splitting option, pick the destination, and start the operation. Always make a backup of the original PST file before splitting to preserve your data.
Read More: https://www.datavare.com/software/outlook-pst-split-expert.html