How to Increase Outlook File Size for More Storage Space?

Are you also frustrated with a full Outlook mailbox and unable to do tasks, and want to increase Outlook file size? Then you have opened the right blog. This article is going to explain the best ways to set Outlook email size using Windows Registry Editor, archive old emails, compact Outlook data files, and provide an automatic solution to split large PST file.

When a user wants to increase Outlook file size, it indicates that Outlook has reached its maximum size, and users are facing issues. We received 1000s of important emails daily, which fill the mailbox faster, and due to their large size, we face multiple issues like:

• Outlook becomes slow and unresponsive.
• Delay in receiving emails.
• You will not be able to use functions like searching, opening emails, attachments, etc.
• Large data files contain a high risk of corruption and being damaged.
• Outlook keeps crashing and freezing while opening.
• After understanding the issues, let’s find the right way to resolve them.

How to Set Outlook Email Size?

We can increase Outlook file size using Windows Registry Editor, archiving old emails separately, compacting files, and using an automatic solution. All methods are explained in the upcoming sections. Read and then choose the best technique accordingly.

Quick Suggestion for Large PST File Size

The FreeViewer PST Splitter Tool doesn’t set Outlook email size, but it divides your large files into smaller parts for better management and use. This software works with orphan, inaccessible, and damaged data files without having limitations. It provides different Split Options to extract emails by size, date, year, subject, folders, etc. Install the free demo edition to analyze the performance and features.

How Does Tool Increase Outlook File Size?

1. Download and start the solution.
2. Add your large data files/folders.
3. Choose the Split Option as per your choice.
4. Select a location to save the results.
5. Choose the Split icon to start the process.

Method 1: Set Outlook Email Size Using Windows Registry Editor

This technique can actually increase Outlook file size by following the given steps:

Important Note: Microsoft doesn’t support the suggested size of the Outlook mailbox because it contains a high risk of corruption.

1. Hit the Win + R keys and type regedit.
2. Now find the Outlook version:
   HKEY_CURRENT_USER\Software\Microsoft\Office\<version>\Outlook\PST
3. Now right-click on PST >> New >> DWORD (32-bit) Value.
4. Next, create these values:

• MaxLargeFileSize
• WarnLargeFileSize

5. Now set the value in Decimal (MB):
6. Now, finally, restart your Outlook account.

Method 2: Increase Outlook File Size by Archiving Emails

1. Open Outlook account.
2. Head to the File >> Tools >> “Clean Up Old Items” options.
3. Choose the folder that you want to archive.
4. Choose data according to requirements.
5. Now select a location to save the output file.
6. Lastly, choose the OK button to set Outlook email size.

Method 3: Compact Outlook Data Files

The compacting process simply removes white space (hidden space) from the file.

1. Launch your Outlook application.
2. Hit on the “File” >> “Account Settings” >> “Data Files” options.
3. Now select the required PST/OST file.
4. After this, select the “Settings” >> “Compact Now” options.

Why Dividing Files is a Better Option to Manage Mailboxes?

Splitting is the best way instead of increasing the mailbox size, because manual techniques contain multiple drawbacks to set Outlook email size, while the solution only provides advanced features like:

• The software gives you multiple options to divide files by size, date, year, sender, folder, email ID, category, and subject.
• It maintains the original folder structure and retains all components like email header and body details.
• This software supports multiple PST files in bulk at the same time without having restrictions.
• Also, you can protect your output data files with a password at once.
• This software supports all types of data files, including orphan, inaccessible, and corrupted.

Final Comment

This blog has explained all the best and possible methods to increase Outlook file size using Windows Registry Editor, archive old emails, and compact Outlook data files. Also, the suggested solution will be a better option instead of increasing the size. Because the process of increasing contains a high risk of corruption, divide your file into smaller parts, clean your mailbox, and manage data properly. If you have any queries, then contact us through live chat support.