{"id":5331,"date":"2022-02-12T12:02:56","date_gmt":"2022-02-12T12:02:56","guid":{"rendered":"https:\/\/www.cigatisolutions.com\/blog\/?p=5331"},"modified":"2025-09-15T10:53:54","modified_gmt":"2025-09-15T10:53:54","slug":"merge-pst-files","status":"publish","type":"post","link":"https:\/\/www.cigatisolutions.com\/blog\/merge-pst-files\/","title":{"rendered":"How to Merge PST Files Without Duplicates in Outlook"},"content":{"rendered":"\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-top\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;5331&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;top&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;1&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;5&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Rate this post&quot;,&quot;legend&quot;:&quot;5\\\/5 - (1 vote)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;How to Merge PST Files Without Duplicates in Outlook&quot;,&quot;width&quot;:&quot;142.5&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 142.5px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            5\/5 - (1 vote)    <\/div>\n    <\/div>\n\n<p>Most users are worried about managing their multiple Outlook PST files together. If you are amongst them, who is facing trouble while handling PST files in bulk? In this technical blog, we will teach you how to merge PST files without duplicates content. Keep scrolling this post to know all the answers for the same.<\/p>\n\n\n\n<div class=\"d-block text-center py-2\"><a class=\"d-inline-block p-2 px-3 rounded border border-primary text-decoration-none text-primary\" href=\"https:\/\/messenger.providesupport.com\/messenger\/0pi295uz3ga080c7lxqxxuaoxr.html\">Need Help? Let&#8217;s Chat!<\/a><\/div>\n\n\n\n<p>A PST is an acronym that is for Personal Storage Table. It is a file format that is used without the Microsoft Outlook application that is used for storing emails, contacts, messages, calendars, and many more items. So, users can access their PST files in online mode. Also, it supports services like Microsoft Exchange Client, Windows Messaging, and all the versions of Outlook with different size limits. Now, let us proceed further and get familiar with all the reasons behind merging PST files without duplicates.<\/p>\n\n\n\n<p><strong>Related Post: <a href=\"https:\/\/www.cigatisolutions.com\/blog\/merge-email-accounts-in-outlook\/\"><span style=\"font-weight: 400;\">Merge Email Accounts in Outlook<\/span><\/a><\/strong><\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.cigatisolutions.com\/blog\/merge-pst-files\/#Why_Do_We_Need_to_Combine_Outlook_PST_File\" >Why Do We Need to Combine Outlook PST File?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.cigatisolutions.com\/blog\/merge-pst-files\/#How_to_Merge_PST_Files_without_Duplicates_%E2%80%93_Best_2_Ways\" >How to Merge PST Files without Duplicates? &#8211; Best 2 Ways<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.cigatisolutions.com\/blog\/merge-pst-files\/#Part_1_Create_a_New_Blank_PST_File\" >Part 1: Create a New Blank PST File<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.cigatisolutions.com\/blog\/merge-pst-files\/#Part_2_Import_Old_PST_Data_to_a_New_File\" >Part 2: Import Old PST Data to a New File<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.cigatisolutions.com\/blog\/merge-pst-files\/#Merge_Multiple_Outlook_PST_Files_Using_PST_Merger_Software\" >Merge Multiple Outlook PST Files Using PST Merger Software<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.cigatisolutions.com\/blog\/merge-pst-files\/#Take_Away\" >Take Away<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.cigatisolutions.com\/blog\/merge-pst-files\/#Frequently_Asked_Questions\" >Frequently Asked Questions<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Do_We_Need_to_Combine_Outlook_PST_File\"><\/span>Why Do We Need to Combine Outlook PST File?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>There are several instances where combining existing PST files into a new PST data file. We have listed all the possible reasons in the list below:<\/p>\n\n\n\n<ul class=\"wp-block-list list_content\">\n<li>If users want to merge multiple old Outlook accounts.<\/li>\n\n\n\n<li>To create a backup of the existing accounts.<\/li>\n\n\n\n<li>In the case of migrating emails to different services or exchanges.<\/li>\n\n\n\n<li>When combining work and social accounts.<\/li>\n<\/ul>\n\n\n\n<p>The above-listed reasons give a clear idea in the user&#8217;s mind to combine PST files without duplicates. Here let us begin with the possible ways to merge them.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Merge_PST_Files_without_Duplicates_%E2%80%93_Best_2_Ways\"><\/span>How to Merge PST Files without Duplicates? &#8211; Best 2 Ways<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>If you want to combine your Outlook PST file, you can merge it using two parts. In the first step, you need to create an empty file, and then in the second step, you have to import the data of the old PST file into the new one.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Part_1_Create_a_New_Blank_PST_File\"><\/span>Part 1: Create a New Blank PST File<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Launch the desktop-based <strong>Outlook<\/strong> application on your system.<\/li>\n\n\n\n<li>In the Home tab, click on <strong>New items<\/strong> and expand it to choose the <strong>More Items<\/strong> option.<\/li>\n\n\n\n<li>Now, select the <strong>Outlook Data File<\/strong> option.<\/li>\n\n\n\n<li>After that, <strong>Browse the Location<\/strong> where you want to save the file and then <strong>Name the PST File<\/strong> of your choice.<\/li>\n\n\n\n<li>At last, hit the <strong>Ok<\/strong> button.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Part_2_Import_Old_PST_Data_to_a_New_File\"><\/span>Part 2: Import Old PST Data to a New File<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Open the desktop-based <strong>Outlook<\/strong> application on your PC.<\/li>\n\n\n\n<li>Navigate to the <strong>File<\/strong> tab and tap on the <strong>Open &amp; Export<\/strong> tab.<\/li>\n\n\n\n<li>Click on the<strong> Import\/Export<\/strong> icon to continue the process.<\/li>\n\n\n\n<li>Now, in the <strong>Import and Export wizard<\/strong>, select the option<strong> Import from Another Program or File<\/strong>.<\/li>\n\n\n\n<li>After that, choose the <strong>Outlook Data File(.pst)<\/strong> option and tap on the <strong>Next<\/strong> button.<\/li>\n\n\n\n<li>In the Next step, click on the <strong>Browse<\/strong> button and then select the <strong>PST File<\/strong>.<\/li>\n\n\n\n<li>Check the option <strong>Do Not Import Duplicate Items<\/strong>.<\/li>\n\n\n\n<li>Then, select the <strong>Include Subfolder<\/strong> option and then import items to the same folder.<\/li>\n\n\n\n<li>Finally, hit the <strong>Finish<\/strong> button to end the process.<\/li>\n<\/ul>\n\n\n\n<p>The above method helps the users to merge PST files without duplicate content. But if this method does not meet your expectations, you can opt for the expert\u2019s solution that instantly merges your PST files.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Merge_Multiple_Outlook_PST_Files_Using_PST_Merger_Software\"><\/span>Merge Multiple Outlook PST Files Using PST Merger Software<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>To overcome all the glitches in the above manual method, we recommend users opt for the <strong>Cigati <a href=\"https:\/\/www.cigatisolutions.com\/pst-merge\/\">PST Merge Tool<\/a><\/strong>. This utility is well-structured that can merge PST files without duplicates into a single PST file. The software also provides multiple options to join and merge PST files that make the entire process smooth. Furthermore, users can also protect and add security to their resultant PST file by applying a password to it.<\/p>\n\n\n\n<div class=\"row justify-content-center mac-win-tab mt-1 mb-5\">\n<div class=\"col-md-6\">\n<ul id=\"myTab\" class=\"nav nav-tabs justify-content-center\" role=\"tablist\">\n<li class=\"nav-item\" role=\"presentation\"><button id=\"home-tab\" class=\"nav-link bg-transparent px-4 active\" role=\"tab\" type=\"button\" data-toggle=\"tab\" data-target=\"#home\" aria-controls=\"home\" aria-selected=\"true\"><i class=\"icon-windows\"><\/i> Windows<\/button><\/li>\n<li class=\"nav-item\" role=\"presentation\"><button id=\"profile-tab\" class=\"nav-link bg-transparent px-4\" role=\"tab\" type=\"button\" data-toggle=\"tab\" data-target=\"#profile\" aria-controls=\"profile\" aria-selected=\"false\"><i class=\"icon-apple\"><\/i>Mac<\/button><\/li>\n<\/ul>\n<div id=\"myTabContent\" class=\"tab-content\">\n<div id=\"home\" class=\"tab-pane fade active show\" role=\"tabpanel\" aria-labelledby=\"home-tab\"><span class=\"block_btn\"><a class=\"primary-btn\" href=\"https:\/\/www.cigatisolutions.com\/demo-version\/Cigati-pst-merge-tool.exe\"><i class=\"icon-windows\"><\/i> Download Now<\/a>&nbsp;&nbsp;<a class=\"secondary-btn\" href=\"https:\/\/www.cigatisolutions.com\/pst-merge\/purchase-now.php\"><i class=\"icon-basket\"><\/i> Purchase Now<\/a><\/span><\/div>\n<div id=\"profile\" class=\"tab-pane fade\" role=\"tabpanel\" aria-labelledby=\"profile-tab\"><span class=\"block_btn\"><a class=\"primary-btn\" href=\"https:\/\/www.cigatisolutions.com\/demo-version\/Cigati-mac-pst-merge.dmg\"><i class=\"icon-apple\"><\/i> Download Now<\/a>&nbsp;&nbsp;<a class=\"secondary-btn\" href=\"https:\/\/www.cigatisolutions.com\/mac\/pst-merge\/purchase-now.php\"><i class=\"icon-basket\"><\/i> Purchase Now<\/a><\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Take_Away\"><\/span>Take Away<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>This post describes the need to merge or join necessary Outlook emails and remove duplicates in the Outlook PST data file. We have discussed manual as well as professional approaches for the same. Users can opt for the best suitable method as per their choice. Moreover, the professional method provides security to the users to merge PST files without duplicating content instantly.<\/p>\n\n\n\n<p><strong>You May Also Read: <\/strong><a href=\"https:\/\/www.cigatisolutions.com\/blog\/merge-outlook-calendars-into-one\/\">Combine Multiple Outlook Calendars into One<\/a><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions\"><\/span>Frequently Asked Questions<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1757933357789\"><strong class=\"schema-faq-question\">Q: What causes duplicate emails when merging PST files?<\/strong> <p class=\"schema-faq-answer\"><strong>Ans:<\/strong> Duplicates usually occur due to repeated imports, syncing issues, or multiple PST files containing the same messages from different accounts or backups.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1757933392300\"><strong class=\"schema-faq-question\">Q: Is there a free way to merge PST files without duplicates?<\/strong> <p class=\"schema-faq-answer\"><strong>Ans:<\/strong> You can manually merge PSTs using Outlook\u2019s Import\/Export feature with the \u201cDo not import duplicates\u201d option. However, this can be time-consuming for large or multiple PSTs.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1757933410052\"><strong class=\"schema-faq-question\">Q: How do I remove duplicate items after merging PST files?<\/strong> <p class=\"schema-faq-answer\"><strong>Ans:<\/strong> You can use Outlook\u2019s built-in \u201cClean Up\u201d tool for duplicate conversations or use a third-party deduplication tool that scans and deletes exact duplicates from your PST.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1757933284958\"><strong class=\"schema-faq-question\">Q: Can I merge multiple PST files directly in Outlook without duplicates?<\/strong> <p class=\"schema-faq-answer\"><strong>Ans:<\/strong> Outlook allows you to import PST files, but it doesn\u2019t automatically remove duplicates. You\u2019ll need to either enable \u201cDo not import duplicates\u201d during import or use a third-party <strong>Cigati PST Merge Tool<\/strong> for accurate results.<\/p> <\/div> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Most users are worried about managing their multiple Outlook PST files together. If you are amongst them, who is facing<a class=\"read-more ml-1 main-read-more\" href=\"https:\/\/www.cigatisolutions.com\/blog\/merge-pst-files\/\">Read More<\/a><\/p>\n","protected":false},"author":14,"featured_media":5335,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[79],"tags":[],"class_list":["post-5331","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-split-merge"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Merge PST Files Without Duplicates - Simple Guide<\/title>\n<meta name=\"description\" content=\"Keep Outlook data neat! Merge PST files without duplicates and remove clutter with a simple and effective method.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.cigatisolutions.com\/blog\/merge-pst-files\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Merge PST Files Without Duplicates - Simple Guide\" \/>\n<meta property=\"og:description\" content=\"Keep Outlook data neat! 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