{"id":10196,"date":"2024-07-23T06:07:46","date_gmt":"2024-07-23T06:07:46","guid":{"rendered":"https:\/\/www.cigatisolutions.com\/blog\/?p=10196"},"modified":"2025-09-18T10:56:05","modified_gmt":"2025-09-18T10:56:05","slug":"outlook-ost-file-too-large-issue","status":"publish","type":"post","link":"https:\/\/www.cigatisolutions.com\/blog\/outlook-ost-file-too-large-issue\/","title":{"rendered":"Outlook OST File Too Large Issue? Fix It in Minutes"},"content":{"rendered":"\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-top kksr-disabled\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;10196&quot;,&quot;readonly&quot;:&quot;1&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;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;Outlook OST File Too Large Issue? Fix It in Minutes&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>Your Outlook inbox can get full if you send and receive many emails. However, this can make Outlook slow and even stop working if it gets too big. Deleting old emails can help, but sometimes the problem is with the way Outlook stores your emails. To fix this error Outlook OST File Too Large, you might need to do some extra steps to reduce the size of your Outlook files. Otherwise, you can effortlessly opt for the <strong>Cigati <a href=\"https:\/\/www.cigatisolutions.com\/split-ost\/\">OST Splitter<\/a><\/strong> to do this.<\/p>\n\n\n\n<div class=\"row justify-content-center mac-win-tab mt-3 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-OST-Split_win.exe\"><i class=\"icon-windows\"><\/i> Download Now<\/a>&nbsp;&nbsp;<a class=\"secondary-btn\" href=\"https:\/\/www.cigatisolutions.com\/split-ost\/purchase-now.php\"><i class=\"icon-basket\"><\/i> Purchase Now<\/a><\/span>\n        <\/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-OST-Splitter-for-mac.dmg\"><i class=\"icon-apple\"><\/i> Download Now<\/a>&nbsp;&nbsp;<a class=\"secondary-btn\" href=\"https:\/\/www.cigatisolutions.com\/mac\/split-ost\/purchase-now.php\"><i class=\"icon-basket\"><\/i> Purchase Now<\/a><\/span>\n        <\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<p>Suppose, you&#8217;re getting a message saying your email storage is full, and it&#8217;s causing problems. Emails you send aren&#8217;t showing as sent, even though they&#8217;re going through. You can&#8217;t delete or move emails either. This is likely because your Outlook data file is too big. You need to find a way to clear up space in your email account to fix this mess.<\/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\/outlook-ost-file-too-large-issue\/#Why_Do_Users_Want_to_Fix_the_Outlook_OST_File_Size_Limit\" >Why Do Users Want to Fix the Outlook OST File Size Limit?<\/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\/outlook-ost-file-too-large-issue\/#Top_5_Methods_to_Fix_Outlook_OST_File_Too_Large_Issue\" >Top 5 Methods to Fix Outlook OST File Too Large Issue<\/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\/outlook-ost-file-too-large-issue\/#1_Archive_Old_Emails_to_Decrease_the_Size_of_OST\" >#1. Archive Old Emails to Decrease the Size of OST<\/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\/outlook-ost-file-too-large-issue\/#2_Compact_Outlook_OST_Files\" >#2. Compact Outlook OST Files<\/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\/outlook-ost-file-too-large-issue\/#3_Clear_Large_Attachments_and_Empty_Deleted_Items_Folders\" >#3. Clear Large Attachments and Empty Deleted Items Folders<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.cigatisolutions.com\/blog\/outlook-ost-file-too-large-issue\/#4_Turn_Off_RSS_Feeds\" >#4. Turn Off RSS Feeds<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.cigatisolutions.com\/blog\/outlook-ost-file-too-large-issue\/#5_Fixing_the_Outlook_OST_Files_too_Large_Issue_by_Using_Automated_Solution\" >#5. Fixing the Outlook OST Files too Large Issue by Using Automated Solution<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.cigatisolutions.com\/blog\/outlook-ost-file-too-large-issue\/#Steps_to_Reduce_File_Size_of_OST_Files\" >Steps to Reduce File Size of OST Files<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.cigatisolutions.com\/blog\/outlook-ost-file-too-large-issue\/#Conclusion\" >Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.cigatisolutions.com\/blog\/outlook-ost-file-too-large-issue\/#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_Users_Want_to_Fix_the_Outlook_OST_File_Size_Limit\"><\/span>Why Do Users Want to Fix the Outlook OST File Size Limit?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The following section will discuss some benefits of opting for resolving this issue.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Speed: <\/strong>A smaller inbox means a zippier Outlook, opening emails and searching your messages in a few clicks. With fewer emails, Outlook can perform these tasks much faster, saving you valuable time.<\/li>\n\n\n\n<li><strong>Easy to find an old email: <\/strong>A clean inbox makes searching for specific messages simple. But if you clean it out and organize everything, it&#8217;s much easier to track down what you&#8217;re looking for. A smaller, more organized inbox makes it simpler to find the emails you need.<\/li>\n\n\n\n<li><strong>Space<\/strong>: Free up valuable space on your computer by keeping your inbox clutter-free. Large inboxes can take up a surprising amount of space on your computer&#8217;s hard drive. As a result, users want to fix the Outlook OST File Too Large issue.<\/li>\n\n\n\n<li><strong>Crash Avoider:<\/strong> An inbox can lead to crashes. Keep things tidy and avoid those frustrating program shutdowns. A very extensive inbox can lead to Outlook instability and even crashes.<\/li>\n\n\n\n<li><strong>Organization<\/strong>: A clean inbox makes managing your emails simple. Find what you need quickly and stay on top of your messages. On the other hand, a cluttered inbox can be overwhelming and make it difficult to stay on top of your messages. By keeping your inbox clean, you&#8217;ll be able to find the emails you need more quickly and easily. As a result, this will help you stay more productive and organized.<\/li>\n\n\n\n<li><strong>Company Compliance: <\/strong>Some workplaces have limits on inbox size. Stay within the rules and avoid email service disruptions by keeping your inbox trimmed. However, some companies have limits on the size of your inbox. If you exceed this limit, you can\u2019t receive new emails.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Top_5_Methods_to_Fix_Outlook_OST_File_Too_Large_Issue\"><\/span>Top 5 Methods to Fix Outlook OST File Too Large Issue<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>There are tricks to make it smaller and faster. We&#8217;ll show you how to clean up your emails, organize your files, and speed up Outlook. Let&#8217;s get started.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Archive_Old_Emails_to_Decrease_the_Size_of_OST\"><\/span>#1. Archive Old Emails to Decrease the Size of OST<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>You can move old emails and stuff you don&#8217;t need often to a folder, an archive. However, this makes your inbox smaller and faster.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>First, move old emails to an archive folder.<\/li>\n\n\n\n<li>This makes your inbox smaller.<\/li>\n\n\n\n<li>After that, go to &#8220;File&#8221; &gt; &#8220;Info&#8221; &gt; &#8220;Tools&#8221; &gt; &#8220;Clean up old items&#8221; or &#8220;Archive.&#8221;<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Compact_Outlook_OST_Files\"><\/span>#2. Compact Outlook OST Files<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Follow the below procedure to resolve the Outlook OST File Too Big error.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>First, go to &#8220;File&#8221; &gt; &#8220;Account Settings&#8221; &gt; &#8220;Account Settings.&#8221;<\/li>\n\n\n\n<li>Then, find your Outlook file and click &#8220;Settings.&#8221;<\/li>\n\n\n\n<li>At last, click &#8220;Compact Now&#8221; to shrink the file.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Clear_Large_Attachments_and_Empty_Deleted_Items_Folders\"><\/span>#3. Clear Large Attachments and Empty Deleted Items Folders<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Do you look for emails with huge attachments? Save the important ones and then delete them from the email. As a result, this will give your inbox some room.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Initially, empty the &#8220;Deleted Items&#8221; folder.<\/li>\n\n\n\n<li>Then, right-click on the folder.<\/li>\n\n\n\n<li>Finally, choose &#8220;Empty Folder&#8221; or &#8220;Delete All.&#8221;<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Turn_Off_RSS_Feeds\"><\/span>#4. Turn Off RSS Feeds<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>First, go to &#8220;File&#8221; &gt; &#8220;Account Settings.&#8221;<\/li>\n\n\n\n<li>Then, find &#8220;RSS Feeds&#8221; and delete or disable them.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Fixing_the_Outlook_OST_Files_too_Large_Issue_by_Using_Automated_Solution\"><\/span>#5. Fixing the Outlook OST Files too Large Issue by Using Automated Solution<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>With the help of the <strong>Cigati OST splitter<\/strong>, you can cut your file into smaller pieces based on size, date, who sent it, or even which folder it&#8217;s in. However, this software is highly recommendable by IT Experts and Administrators. In addition, this wizard offers a self-intuitive and attractive Graphical User Interface so that non-technical users or beginners can effortlessly perform the steps. Now, it\u2019s time to go through the workings of this utility that will clear all your doubts.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Steps_to_Reduce_File_Size_of_OST_Files\"><\/span>Steps to Reduce File Size of OST Files<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>First, open the OST Splitter tool.<\/li>\n\n\n\n<li>After that, choose the bulky Outlook file you want to reduce.<\/li>\n\n\n\n<li>Then, tell the tool to reduce the file into smaller pieces based on size.<\/li>\n\n\n\n<li>Next, decide how oversized you want each small file to be.<\/li>\n\n\n\n<li>Further, pick where to save the smaller files.<\/li>\n\n\n\n<li>At last, click &#8220;Split&#8221; to start reducing your Outlook file.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>Your Outlook file can get big because it saves all your emails, contacts, and calendar mailbox data. As a result, this can be a problem because your computer might run slowly. Don&#8217;t worry, though! We&#8217;ve got multiple ways to fix Outlook OST File Too Large Error and speed up your Outlook.<\/p>\n\n\n\n<p><strong>You May Also Read:<\/strong> <a href=\"https:\/\/www.cigatisolutions.com\/blog\/how-to-compact-ost-file\/\">Compact OST File in Outlook<\/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-1752047245522\"><strong class=\"schema-faq-question\">Q: Why is my Outlook OST file so large?<\/strong> <p class=\"schema-faq-answer\"><strong>Ans:<\/strong> OST files grow large due to excessive cached mailbox data, including emails, attachments, calendar items, and deleted items not permanently removed. Over time, this cache accumulates and inflates the file size.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1752047068760\"><strong class=\"schema-faq-question\">Q: How do I compact an oversized OST file in Outlook?<\/strong> <p class=\"schema-faq-answer\"><strong>Ans:<\/strong> Go to <strong>File > Account Settings > Data Files > Settings > Advanced > Outlook Data File Settings<\/strong>, then click <strong>Compact Now<\/strong> to reduce the OST file size.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1752047194304\"><strong class=\"schema-faq-question\">Q: Can I split an OST file into smaller parts?<\/strong> <p class=\"schema-faq-answer\"><strong>Ans: <\/strong>Outlook doesn&#8217;t support splitting OST files natively. However, third-party tools like <strong>Cigati <a href=\"https:\/\/www.cigatisolutions.com\/ost-to-pst-converter\/\">OST to PST Converter<\/a><\/strong> can convert OST to PST and split the PST into smaller files for better management.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1752047362801\"><strong class=\"schema-faq-question\">Q: Does increasing the OST file size limit in the registry help?<\/strong> <p class=\"schema-faq-answer\"><strong>Ans:<\/strong> Yes, you can increase the size limit beyond 50 GB using registry tweaks, but it&#8217;s not always recommended as it may lead to performance issues with very large files.<\/p> <\/div> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Your Outlook inbox can get full if you send and receive many emails. However, this can make Outlook slow and<a class=\"read-more ml-1 main-read-more\" href=\"https:\/\/www.cigatisolutions.com\/blog\/outlook-ost-file-too-large-issue\/\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":10197,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[79],"tags":[],"class_list":["post-10196","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 v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Outlook OST File Too Large to Open? - Easy Fixes Explained<\/title>\n<meta name=\"description\" content=\"Facing issues with an Outlook OST file too large to open or sync? Learn smart ways to reduce OST size without data loss.\" \/>\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\/outlook-ost-file-too-large-issue\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Outlook OST File Too Large to Open? - Easy Fixes Explained\" \/>\n<meta property=\"og:description\" content=\"Facing issues with an Outlook OST file too large to open or sync? 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