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Split Outlook PST File by Year Easily & Safely via 2 Ways

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Published By Jamie Kaler
Rollins Duke
Approved By Rollins Duke
Published On May 25th, 2026
Reading Time 4 Minutes Reading
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Looking for a quick solution to split Outlook PST file by year to reduce large PST file size or improve Outlook speed & performance and prevent PST file from corruption, but don’t know how to split Outlook PST file year wise? This blog will assist you in breaking PST file year-wise with use of two tested Techniques. We are using an automatic solution & a manual method to split PST Outlook PST files. A manual method requires knowledge of Microsoft Outlook & its features. Secondly, manual workarounds are prone to human errors & consist of time-consuming steps.

Professional users choose a secure, desktop-based, automatic solution over a manual method to get job done exactly as they want. An automated solution is mostly chosen by IT admins, professionals, and technical users to break PST file by year.

Use of a free method is not useful for frequent use and fails to complete the task in batches. If you are an individual user and want to use a manual method, then this method might be helpful for you.

Split Outlook PST by Year Using Automatic Solution

To split Outlook PST by year securely, accurately & directly, you can try PST Splitter Toolkit by MailsWare. This tool allows users to split PST file by date, email ID, & Size. It also splits all types of PST files, including corrupted, damaged, & inaccessible, etc. Apart from this, using this tool, users can split PST file by importing outsider PST file inside the tool.

Steps of Automatic Solution

  1. Open the tool on your Windows Operating System and hit “next.”open tool and click next
  2. Then, choose “Convert Configured Outlook” option > Next.choose configured option
  3. After that, select folders as per your need which you want to split > click “Next.”select folders as per your need
  4. Set filters as per your need by clicking on “split option.”Split Outlook PST File by Year
  5. Finally, click on “split” button to split PST files as per year.How to split Outlook PST File Year Wise

Advantages of Using Automatic Solution

  • The software has dual modes, which allow users to add PST files manually through folders and files to the software panel. And another option is to import from a configured account.
  • This tool can split PST files from corrupted, damaged, and inaccessible PST files. Due to this, your PST files will be repaired before splitting with use of Recovery Mode option.
  • The tool allows users to split PST by Year, by simply entering the start year and end year due to which splitting of PST files becomes easy.
  • Using this tool, users can save break PST files to their chosen desired location as per their storage space.

Manual Method to Divide Outlook PST File Year Wise

  1. Open Outlook application on your Windows PC.
  2. Go to “Folder” Tab, choose “AutoArchive settings.”
  3. After that, choose option “Archive this folder using this settings.”
  4. Now, set the “month” as per your required years by click arrows key.
  5. Then, click on “apply” button to apply the settings.
  6. Finally, set “Destination Path” and click “OK” button.
  7. Done, your Split Outlook PST file by year is ready to use.

Loopholes of Using Manual Method

  • You can only set Month, Week and Days in AutoArchive settings.
  • There is no folder selection option available in this manual method.
  • You cannot split an imported PST file with this manual method.
  • This manual solution is not useful in case of corrupted Outlook profiles.
  • Using this method, you cannot recover & split damaged, corrupted, and inaccessible PST files.

These were drawbacks of manual method to split Outlook PST file by year.

Final Thoughts

At the end of this blog on topic “Split Outlook PST File by Year.” We shared two tested techniques. We found that using an automatic solution, users can selectively split PST files year-wise without corruption and losing data integrity. On the other hand, a manual workaround has no options available to split PST files as per the user’s needs and is not suitable for frequent use.

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