Best 03 Methods to Compress PST File in Outlook Manually – Step by Step

Learn how to reduce PST files in Outlook 2021, 2019, 2016, 2013, 2010, 2007, and the best and simplest method possible. Find out the easiest way to minimize the size of an Outlook PST file. The three best methods to manually reduce the size of an Outlook mailbox are to archive old emails, use the Mailbox Cleanup Tool, and compact now.

As we use Outlook from Microsoft to send and receive emails, schedules, journals, and other information, we frequently get a lot of data collected in our Microsoft Outlook email. A PST file is where Outlook's data is kept.

Now that Outlook data is rising, this database file (.pst) is growing larger and larger over time. There will eventually come a time when Outlook's inability to work properly due to the PST file's growing size, at which point we will have to reduce PST file sizes in Microsoft Outlook.

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What Does Compression Your Outlook Data File Do and Why Do PST Files Get Compressed?

Several issues arise due to the enormous size of the Outlook data file. Among them are:

• Outlook is becoming slower
• Damage to an Outlook.pst file
• Outlook's inadequate performance
• When opening Outlook, it does not reply

Therefore, we must compress Outlook PST files to enhance Outlook functionality and guard against PST file corruption. This will enable users to operate effectively in Outlook and communicate data without any difficulties or interruptions.

How Can I Condense My Outlook PST Files from 2016, 2013, 2010, 2007?

There are a few ways to shrink Outlook data files, and in this article we'll go over the simplest and safest ways to compress PST files in Outlook 2016, 2013, 2010, 2007, and all prior versions.

Let's examine each of the manual PST compression techniques one by one:

Method 1: "Compact Now" Technique for Outlook Data File Compression

For Microsoft Office 2010; 2013; and 2016

Step 1: Open Microsoft Outlook

Step2: Click the File Tab.

Step 3: Select Info > Account Settings >Account Settings once more

Step 4: Choose "Settings" after selecting "Data Files."

Step 5: Select "Compact Now" from the menu that appears.

Step 6: Select "OK" to exit.

Reduce Outlook 2007 PST File Size

Step 1: First, launch Microsoft Outlook.

Step 2: Next, select the File tab. Management of Data Files

Step 3: Select "Data Files" now.

Step4: Select "Settings."

Step 5: Select "Compact Now."

Step 6: Click OK to close

Note: Always configure Outlook 2013 and 2016 using IMAP. An ost file is produced.

Setting up POP in Outlook 2013 and 2016 consistently. A pst file is produced.

Method 2: Tool for Cleaning Mailboxes

Step 1: Navigate the File tab in Outlook

Step 2: Select Tools > Clean Mailbox.

Step 3: To choices will come up View Mailbox Size, Find things older than, Find items bigger than, View Deleted things Size, Clear Deleted Items, View Conflicts Size, and Empty Conflict. Choose any of these appropriately.

Method 3: Reduce PST File by Archiving Old Outlook Emails

Step 1: Navigate to File >> Info

Step 2: Select Instruments >> Empty Out Old Items

Step 3: Choose Archive this folder and all subfolders option, & then pick the folder you desire to archive.

Step 4: You can generate numerous Outlook data files (.pst) using various parameters if you wish to archive a few specific folders.

Step 5: Examine To archive things that are not included in automatic archiving, include items that have the "Do not Auto Archive" checkbox selected.

Step 6: Press the OK button.

Last Remarks

In conclusion, I would like to state that users may simply locate all of the aforementioned techniques to compress PST files in Outlook 2016, 2013, 2010, 2007, & all versions below in their Outlook settings without requiring outside assistance. All that will matter is that these manual techniques can only be used in the event that your PST file is not too big—say, 35 GB or larger. To do that, you would need to use DataVare Outlook Compact PST Tool in order to compress huge PST files within Microsoft Outlook.

If you are experiencing issues with the size of your Outlook data file, it is not harmful to try these built-in solutions.