{"id":9097,"date":"2020-04-03T09:49:12","date_gmt":"2020-04-03T09:49:12","guid":{"rendered":"https:\/\/www.sysinfotools.com\/blog\/?p=9097"},"modified":"2025-01-09T07:03:05","modified_gmt":"2025-01-09T07:03:05","slug":"ost-file-size-not-reducing-after-archiving","status":"publish","type":"post","link":"https:\/\/www.sysinfotools.com\/blog\/ost-file-size-not-reducing-after-archiving\/","title":{"rendered":"Outlook OST File Size Not Reducing After Archiving Error &#8211; Fix it"},"content":{"rendered":"<div class=\"block_sum\">\n<p><strong>Summary:<\/strong> The increasing size of Microsoft Outlook is obvious because of its extensive use in various organizations for emailing. Even when a user deletes these email items the size of OST files does not reduce nor does the archiving help. This leads to an error i.e. Outlook OST size not reducing after archiving. Now the question is is there any trick to rectify this error? The answer is \u201cYes\u201d. There are some strategies to solve these issues like you can convert OST to PST as a backup. So, we will share all the strategies and an automated <a href=\"https:\/\/www.sysinfotools.com\/ost-to-pst-converter.php\"><strong>OST to PST Converter<\/strong><\/a> to fix this Outlook error.<\/p>\n<div class=\"blog-btn\">\n<ul id=\"db-btn-container\" class=\"nav nav-tabs mt-4\" role=\"tablist\">\n<li class=\"nav-item\"><a id=\"windows-tab\" class=\"nav-link active\" role=\"tab\" href=\"#windows\" data-toggle=\"tab\" aria-controls=\"windows\" aria-selected=\"true\"><i class=\"icon-windows\"><\/i> Windows<\/a><\/li>\n<li class=\"nav-item\"><a id=\"mac-tab\" class=\"nav-link\" role=\"tab\" href=\"#mac\" data-toggle=\"tab\" aria-controls=\"mac\" aria-selected=\"false\"><i class=\"icon-apple\"><\/i> Mac<\/a><\/li>\n<\/ul>\n<div id=\"db-btn-containerContent\" class=\"tab-content my-2\">\n<div id=\"windows\" class=\"tab-pane fade active show\" role=\"tabpanel\" aria-labelledby=\"windows-tab\"><a class=\"sum-d-btn\" href=\"https:\/\/www.sysinfotools.com\/demo-version\/SysInfoTools-OST-to-PST-Converter-Demo.exe\"><i class=\"icon-windows\"><\/i> Download<\/a> <a class=\"sum-b-btn\" href=\"https:\/\/www.sysinfotools.com\/buynow\/ost-to-pst-converter.php\" target=\"_blank\" rel=\"noopener\"><i class=\"icon icon-basket\"><\/i> Buy Now<\/a><\/div>\n<div id=\"mac\" class=\"tab-pane fade\" role=\"tabpanel\" aria-labelledby=\"mac-tab\"><a class=\"sum-d-btn\" href=\"https:\/\/www.sysinfotools.com\/demo-version\/Sysinfo-Mac-OST-to-PST-for-Mac.dmg\"><i class=\"icon-apple\"><\/i> Download<\/a> <a class=\"sum-b-btn\" href=\"\/\/www.sysinfotools.com\/mac\/ost-to-pst-converter\/buy.php\" target=\"_blank\" rel=\"noopener\"><i class=\"icon icon-basket\"><\/i> Buy Now<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_81 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<div class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/div>\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.sysinfotools.com\/blog\/ost-file-size-not-reducing-after-archiving\/#Manual_Method_to_resolve_%E2%80%9COST_file_size_not_reducing_after_archiving\" >Manual Method to resolve &#8220;OST file size not reducing after archiving<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.sysinfotools.com\/blog\/ost-file-size-not-reducing-after-archiving\/#Method_1_Manage_the_size_of_Outlooks_mailbox\" >Method 1: Manage the size of Outlook\u2019s mailbox<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.sysinfotools.com\/blog\/ost-file-size-not-reducing-after-archiving\/#Method_2_Compact_the_size_of_OST_data_file\" >Method 2: Compact the size of OST data file<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.sysinfotools.com\/blog\/ost-file-size-not-reducing-after-archiving\/#Alternative_Method\" >Alternative Method<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.sysinfotools.com\/blog\/ost-file-size-not-reducing-after-archiving\/#Conclusion\" >Conclusion<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Manual_Method_to_resolve_%E2%80%9COST_file_size_not_reducing_after_archiving\"><\/span>Manual Method to resolve &#8220;OST file size not reducing after archiving<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>We will discuss the manual methods to fix OST file size not reducing after archiving.<\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Method_1_Manage_the_size_of_Outlooks_mailbox\"><\/span>Method 1: Manage the size of Outlook\u2019s mailbox<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>For this, users can take the help of Mailbox-cleanup tool to view the size of the entire Mailbox of Microsoft Outlook. With this, the user can see the size of the particular folder. Users can archive the older emails to an archive Outlook data file &amp; after this, they can empty the folders of deleted-items. Follow the steps to manage the size of the mailbox of Outlook data file.<\/p>\n<ol>\n<li>Firstly, Click on the File tab<\/li>\n<li>Now, click on Tools &amp; then click on Mailbox Cleanup<\/li>\n<li>After this, Follow any of these mentioned steps:<\/li>\n<li>For viewing the size of the entire mailbox and of an individual folder, click on view-mailbox-size<\/li>\n<\/ol>\n<p><strong>If you wish to find the older email items, do this:<\/strong><\/p>\n<ol>\n<li>Choose to find items older than x, which is the required values days<\/li>\n<li>Then, Put in a number between 1 &amp; 999<\/li>\n<li>Finally, Click on find<\/li>\n<li>Choose to find items bigger than X KB<\/li>\n<li>Then after, type in a number between 1 &amp; 9999<\/li>\n<li>Now, click on Find<\/li>\n<\/ol>\n<p>For moving older items in the mailbox to an archive Outlook-Data-File, Then click on AutoArchive<\/p>\n<p><strong>Note:<\/strong> How to <a href=\"https:\/\/www.sysinfotools.com\/blog\/convert-ost-file-to-pst\/\"><strong>Convert OST to PST<\/strong><\/a> in Outlook?<\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Method_2_Compact_the_size_of_OST_data_file\"><\/span>Method 2: Compact the size of OST data file<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Offline storage table file belongs to Microsoft exchange server account. In addition, these files are bot deleted whereas the exchange server runs in the process of deletion. So only shrinking of files will be another option to enhance the performance of Outlook.<\/p>\n<p>Follow these steps to compact OST files you can follow these steps one after the other.<\/p>\n<ol>\n<li>Delete or erase the email which is not needed any longer<\/li>\n<li>After this, open the Folder-List view<\/li>\n<li>At the bottom side of the Navigation Pane, Click on folder list icon. You may also press CTRL+6 for this.<\/li>\n<li>Now, right-click on the folder of deleted items once again the Navigation Pane<\/li>\n<li>Then after, click on Empty folder. &gt;&gt;File&gt;&gt;Account settings<\/li>\n<li>Once it is done, click on Data files tab, click on the file that needs to be compacted.<\/li>\n<li>Next, click on settings&gt;&gt;Advanced tab&gt;&gt;Outlook-Date-File settings<\/li>\n<li>Click on OK<\/li>\n<li>There is no requirement of present Outlook on the compacting process of offline OST file is done<\/li>\n<li>If you want to delete any item, from offline and online folder do this:<\/li>\n<li>Next click on settings&gt;&gt;Advanced tab&gt;&gt;Outlook-Data-File Settings<\/li>\n<li>Choose the item that needs to be erased<\/li>\n<li>Then after press Delete<\/li>\n<\/ol>\n<p>This is the manual method through which you can fix Outlook OST file size not reducing after archiving error. But for performing these methods you need a technical background. This method is too lengthy as well as tough. There may be a chance of losing data during the execution.<\/p>\n<p>Know: How to Solve <a href=\"https:\/\/www.sysinfotools.com\/blog\/ost-file-not-recognized-by-outlook\/\"><strong>OST File Not Recognized by Outlook<\/strong><\/a> Issue?<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Alternative_Method\"><\/span>Alternative Method<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>In order to fix Outlook OST file size not reducing after archiving Error, you need<strong> OST to PST Converter Tool<\/strong>. This tool has a user-friendly GUI. This is easy to use, even a guy with a non-technical background can also install &amp; run the software. The process of execution with this tool is very easy. It keeps the data secure &amp; private after the successful execution.<\/p>\n<p>Also Read- <a href=\"https:\/\/www.sysinfotools.com\/blog\/fix-ost-is-in-use-and-cannot-be-accessed-outlook\/\"><strong>Fix Username OST is in Use and Cannot be Accessed<\/strong><\/a><\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>In this blog, we have shared manually as well as an alternate method to fix the outlook OST file size not reducing after archiving error. The manual method will take time &amp; this is too lengthy. You need a technical background. But automated methods will do work quickly &amp; securely. You don\u2019t need more technical background for performing this method.<\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;9097&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&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;Outlook OST File Size Not Reducing After Archiving Error - Fix it&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","protected":false},"excerpt":{"rendered":"<p>Summary: The increasing size of Microsoft Outlook is obvious because of its extensive use in various organizations for emailing. Even<a class=\"read-more ml-1 main-read-more\" href=\"https:\/\/www.sysinfotools.com\/blog\/ost-file-size-not-reducing-after-archiving\/\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":16115,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1588],"tags":[1565,1589],"class_list":["post-9097","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ms-outlook","tag-ost-file-error","tag-ost-file-size-not-reducing"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Outlook OST File Size Not Reducing After Archiving Error - Fix it<\/title>\n<meta name=\"description\" content=\"Learn how to reduce OST file size to improve MS Outlook performance and get resolved Outlook OST file size not reducing after archiving error.\" \/>\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.sysinfotools.com\/blog\/ost-file-size-not-reducing-after-archiving\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Outlook OST File Size Not Reducing After Archiving Error - Fix it\" \/>\n<meta property=\"og:description\" content=\"Learn how to reduce OST file size to improve MS Outlook performance and get resolved Outlook OST file size not reducing after archiving error.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.sysinfotools.com\/blog\/ost-file-size-not-reducing-after-archiving\/\" \/>\n<meta property=\"og:site_name\" content=\"SysinfoTools Tech Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/sysinfotools\" \/>\n<meta property=\"article:published_time\" content=\"2020-04-03T09:49:12+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-01-09T07:03:05+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.sysinfotools.com\/blog\/wp-content\/uploads\/2020\/04\/outlook-ost-file-size-not-reducing-after-archiving-error-fix-it.png\" \/>\n\t<meta property=\"og:image:width\" content=\"698\" \/>\n\t<meta property=\"og:image:height\" content=\"400\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Simran Bhatia\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Simran Bhatia\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.sysinfotools.com\/blog\/ost-file-size-not-reducing-after-archiving\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.sysinfotools.com\/blog\/ost-file-size-not-reducing-after-archiving\/\"},\"author\":{\"name\":\"Simran Bhatia\",\"@id\":\"https:\/\/www.sysinfotools.com\/blog\/#\/schema\/person\/0bc86a610ba204e43dcf67ac0c4f422a\"},\"headline\":\"Outlook OST File Size Not Reducing After Archiving Error &#8211; 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