How to Reduce Outlook Slowdowns by Splitting PST Files

Introduction

Microsoft Outlook is an email software that is used to organize personal and professional communication. However, as mailbox data expands over time, Outlook’s Personal Storage Table (PST) files can get enormous, leading to regular slowdowns, freezing, delayed searches and even crashes. Big PST files put more effort on Outlook when starting up, indexing, synchronizing and getting data. Microsoft counsel and community reports often connect very large PSTs and extensively occupied folders to performance decrease, especially as files grow into the tens of gigabytes.

A good technique to trim Outlook slowdowns is to break huge PST files into smaller, more manageable ones. This improves Outlook performance, minimizes the danger of corruption, and makes managing email considerably easier.

This post will discuss the reasons behind Outlook slowdown caused by huge PST files, and how to split them using manual methods or a Professional solution.

Why Does Outlook Slow Down With Large PST Files?

There are a number of things that can cause performance issues with Outlook with large PST files.

Over time emails, attachments, contacts, and calendars pile up and PST files get enormous. The larger the file, the longer it will take to load, search and process.
Outlook indexing slows down when PSTs get big, and searching across email becomes slow and unresponsive.
Larger PST files are more likely to become corrupted, and this can cause Outlook to hang or crash. Older ANSI PSTs had considerably lower limitations (~ 2 GB) , whereas newer Unicode PSTs default far higher , but performance difficulties sometimes surface well before strict limits .
Large folders with thousands of emails (particularly Inbox and Sent Items) might slow down Outlook.
Large PST files need more RAM and disk resources, which slows down not only Outlook but occasionally the entire system.

How to Manually Split PST Files to Resolve Outlook Slowness

There are a few built-in methods to minimize PST size or split data manually:

Method 1: Using AutoArchive

AutoArchive lets you move older emails to a separate archive pst file.

Instructions:

Launch Outlook.
Click on File > Options > Advanced.
Click on AutoArchive Settings.
Set the archive frequency and choose things that are old enough to migrate.
Choose Destination Archive PST.
Click on OK.

This creates a secondary PST and decreases the size of the active data file.

Method 2: Create a New PST and Manually Move Emails

You can partition data into numerous PSTs manually.

Steps:

File > Account Settings > Data Files.
Click Add to create a new PST file.
Save as file.
Transfer older emails by year, folder or category to the new PST.
If needed, repeat to make PSTs.

Method 3: Import/Export Wizard

Export chosen folders to a new PST.

Steps :-

Click on File > Open & Export > Import/Export.
Choose Export to a file.
Select Outlook Data File (.pst).
Choose folders to export.
Save as new PST.

Method 4: Combine PST Files

Compacting does not split files, but minimizes the unnecessary white space, and can increase performance.

Instructions:

Open Account Settings > Data Files.
Choose PST file.
Choose Settings.
Select Compact Now.

Disadvantages of Manual Methods

Manual approaches can help but they have various drawbacks:

Moving or exporting big amounts of data manually takes a lot of time.
Important emails can be missed, duplicated, or lost by accident.
Outlook manual approaches don’t provide exact split by file size.
Some techniques can be problematic for non-technical users.

If not handled carefully, manual procedures may damage folder hierarchy or metadata.
Manual approaches are sometimes inefficient for really large PSTs.

Suggested Professional Resolution for Splitting PST

DataVare Outlook PST Split Expert Tool is a great choice for a faster and more dependable way.

This expert software is specially intended to split huge PST files into smaller files without losing data and keep folder structure and email attributes.

It helps to improve Outlook performance and reduces dangers related to big PST files.

Key Features

Split PST File by: Size, Year, Folder, Email ID Users
Maintains Data Integrity of Email, Attachments, Contacts, Calendars, Folder hierarchy, Metadata
Outlook performance and responsiveness is improved with smaller PST files.
Handles large size PST files efficiently.
Simple interface for beginners and professionals.
Split several PST files simultaneously.
no data alteration or corruption during splitting.
Works with all Outlook versions.

Step-by-Step Guide to Use

Follow these steps:

Download and install DataVare Outlook PST Split Expert Tool on your machine.
Launch the app.
Browse and choose the huge PST file that you want to split.
Splitting criteria By size By date By folder
Choose location for split PST files.
Click Split to get going.
When it is done, open the freshly formed smaller PST files.
Import or attach split files into Outlook when needed.

To ensure Outlook runs smoothly:

Restrict size of PST files.
Regularly archive old emails.
Remove unneeded attachments.
Periodically compact PST files.
Avoid storing too much data in one folder.
Proactively split big PST files

Conclusion

Large PST files are one of the biggest reasons why Outlook slows down, freezes and runs into performance issues. Although Outlook has manual ways like AutoArchive, export and compress, these methods have limits and are not convenient for mass PST handling.

A dedicated solution streamlines the process by separating big PST files safely and effectively. This is a realistic method to reduce Outlook slowdowns and manage massive email archives effectively. With advanced split settings, data integrity retained and enhanced Outlook speed.

If your PST files are big, Outlook can drag, and dividing them can give you the performance boost you need.