{"id":6132,"date":"2017-04-27T04:47:57","date_gmt":"2017-04-27T04:47:57","guid":{"rendered":"https:\/\/www.stellarinfo.com\/blog\/?p=6132"},"modified":"2025-06-25T09:44:13","modified_gmt":"2025-06-25T09:44:13","slug":"repair-corrupt-outlook-ost-file","status":"publish","type":"post","link":"https:\/\/www.stellarinfo.com\/blog\/repair-corrupt-outlook-ost-file\/","title":{"rendered":"How to Repair Corrupt OST File in Outlook"},"content":{"rendered":"<?xml encoding=\"utf-8\" ?><?xml encoding=\"utf-8\" ?><p><style>.expando {display: block;}.expando:target { display: none;}<\/style>OST file is an Outlook data file that is created when you configure Outlook with IMAP, Exchange, Office 365, and Outlook.com accounts. It saves a synchronized copy of mailbox data on your local system. You can perform various actions such as reading emails, deleting emails, composing new emails, etc., even in the absence of Internet connectivity or access to the server. When a connection to the server is re-established, Outlook synchronizes all the changes made offline in the OST file with the server.&nbsp;<\/p><p>However, at times, you experience a situation when the OST file gets corrupted. Some signs of OST corruption are error messages during OST file synchronization, missing items from OST file, etc. There are various <a href=\"https:\/\/www.stellarinfo.com\/blog\/reasons-behind-frequent-ost-corruption-issues\/\">factors that can lead to OST corruption<\/a> such as bad sectors on hard drive, incompatible Outlook add-ins, oversized OST file, etc.<\/p><h2 class=\"wp-block-heading\" id=\"manually-repair-corrupt-ost-file-in-outlook-(2021,2019,-2016-and-earlier-versions)\"><strong>Manually Repair Corrupt OST File in Outlook<\/strong> (2021,2019, 2016 and Earlier Versions)<\/h2><p>You can repair Outlook OST files by using Outlook&rsquo;s in-built tools and features. These are as follows:<\/p><h3 class=\"wp-block-heading\"><strong>Solution 1: Update Folder<\/strong><\/h3><p class=\"has-text-align-left\">If there is an issue with a particular folder, you can manually update the folder in Outlook. You have to delete offline items in the affected folder and update the folder by connecting to the Exchange server. Follow the given steps:<\/p><ul class=\"wp-block-list\">\n<li>Open <strong>Outlook<\/strong> and right-click the folder you want to update.<\/li>\n\n\n\n<li>Click <strong>Properties.<\/strong><\/li>\n\n\n\n<li>A dialog box will pop up. Under this dialog box, click <strong>Clear Offline Items<\/strong>.<\/li>\n\n\n\n<li>Click <strong>OK.<\/strong><\/li>\n\n\n\n<li>Click <strong>Send\/Receive<\/strong> tab and click <strong>Update Folder.<\/strong><\/li>\n<\/ul><h3 class=\"wp-block-heading\"><strong>Solution 2: Use ScanPST to Repair OST File<\/strong><\/h3><p>ScanPST.exe&nbsp;or Inbox Repair tool is an Outlook built-in utility that can be used to repair both PST and OST files. You can run this <strong>Outlook repair tool<\/strong> to find and resolve the errors in your OST file. The ScanPST.exe is by default located in Outlook installation directory. However, the exact location may vary depending on the version of Outlook you&rsquo;re using. <\/p><p><strong><em>Suggested Read<\/em><\/strong>: <strong><em><a href=\"https:\/\/www.stellarinfo.com\/blog\/find-scanpst-exe-location-in-ms-outlook\/\">How to Find Scanpst.exe Location in Outlook 2019, 2016, 2013, 2010 &amp; 2007.<\/a><\/em><\/strong><\/p><p>Once you have located the ScanPST.exe on your system, follow these steps:<\/p><ul class=\"wp-block-list\">\n<li>Run <strong>ScanPST.exe<\/strong>.<\/li>\n\n\n\n<li>In the <strong>Microsoft Outlook Inbox Repair Tool<\/strong> window that pops up, click <strong>Browse<\/strong> and enter the location of the OST file you want to repair.<\/li>\n<\/ul><figure class=\"wp-block-image\"><img decoding=\"async\" class=\"apply-gradient-on-post-images\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2018\/02\/repair-pst-through-scanpst.exe_.jpg\" alt=\"Microsoft Outlook Inbox Repair Tool\"><\/figure><ul class=\"wp-block-list\">\n<li>Click <strong>Start<\/strong> to scan the file.<\/li>\n\n\n\n<li>After scanning is completed, ensure you have selected the backup option and then click <strong>Repair<\/strong> to repair the file.<\/li>\n\n\n\n<li>After the repair is completed successfully, an alert window will pop up. Click OK.<\/li>\n\n\n\n<li>If ScanOST or ScanPST doesn&rsquo;t work, try using an <a href=\"https:\/\/converter.stellarinfo.com\/\">online OST to PST conversion tool<\/a> to recover your data quickly.<\/li>\n<\/ul><h2 class=\"wp-block-heading\" id=\"what-to-do-if-the-above-fixes-don&rsquo;t-work?\"><strong>What to do if the above Fixes Don&rsquo;t Work?<\/strong><\/h2><p>In some situations, the above fixes don&rsquo;t work. For instance, if the OST file has certain offline items that aren&rsquo;t on the server, then <a href=\"https:\/\/www.stellarinfo.com\/blog\/recreate-ost-file-outlook-2007-2010-2013-2016\/\">recreating the OST file<\/a> (which requires file deletion) is not an option. In such a situation, you need to extract and export the OST data to Outlook importable PST format. The best and quickest way to recover the data from an inaccessible or orphaned OST file is by using a third-party tool such as Stellar Converter for OST.<\/p><h2 class=\"wp-block-heading\" id=\"why-stellar-converter-for-ost?\"><strong>Why Stellar Converter for OST?<\/strong><\/h2><p><a href=\"https:\/\/www.stellarinfo.com\/convert-ost-to-pst.php\">Stellar Converter for OST<\/a> is the perfect solution to convert OST to PST. It has many distinguished features such as user-friendly design, easy operability, and fast processing. The software is also recommended by many Microsoft MVPs and IT professionals. Here are some impressive features that make it a perfect tool for OST to PST conversion:<\/p><p>This dedicated converter tool works in almost all scenarios and helps you convert your OST to PST File.<\/p><ul class=\"wp-block-list\">\n<li>Risk-free conversion process<\/li>\n\n\n\n<li> Encrypted file conversion support<\/li>\n\n\n\n<li> Free file preview prior to a conversion facility<\/li>\n\n\n\n<li> Better mail message organization support<\/li>\n\n\n\n<li> Support to freely convert up to 20 emails\/folder<\/li>\n\n\n\n<li> User-friendly customization options facility<\/li>\n\n\n\n<li> Can convert emails, calendars, contacts, notes &amp; Journals<\/li>\n\n\n\n<li> Compatible with MS Office 2019, 2016, 2013, 2010, 2007, 2003, 2002 (XP), 2000<\/li>\n\n\n\n<li>Supports saving converted mails into varying formats(EML, MSG, RTF, PDF or HTML)<\/li>\n<\/ul><figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"730\" height=\"177\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2019\/04\/debeato-recommendation-for-stellar-converter-for-OST.png\" alt=\"Verified Professional Review\" class=\"wp-image-38853 apply-gradient-on-post-images\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2019\/04\/debeato-recommendation-for-stellar-converter-for-OST.png 730w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2019\/04\/debeato-recommendation-for-stellar-converter-for-OST-300x73.png 300w\" sizes=\"auto, (max-width: 730px) 100vw, 730px\" \/><figcaption class=\"wp-element-caption\"><em><span class=\"has-inline-color has-cyan-bluish-gray-color\">Stellar Converter for OST recommended by a Verified Professional on Spiceworks community (<a href=\"https:\/\/community.spiceworks.com\/topic\/1971225-need-ost-to-pst-converter-recommendations\">Source<\/a>)<\/span><\/em><\/figcaption><\/figure><h2 class=\"wp-block-heading\" id=\"how-to-convert-ost-to-pst-with-stellar-converter-for-ost?\"><strong>How to convert OST to PST with Stellar Converter for OST?<\/strong><\/h2><p>Stellar Converter for OST software scans an inaccessible OST file and converts the data into a portable PST file in a few simple steps. These are:<\/p><ul class=\"wp-block-list\">\n<li><strong> Download, install and run&nbsp;software <\/strong><\/li>\n<\/ul><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/cloud.stellarinfo.com\/StellarConverterforOST-Corporate-Blog.exe\"><img loading=\"lazy\" decoding=\"async\" width=\"252\" height=\"80\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2024\/01\/free-download-windows.png\" alt=\"free download windows\" class=\"wp-image-159347 apply-gradient-on-post-images\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2024\/01\/free-download-windows.png 252w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2024\/01\/free-download-windows-150x48.png 150w\" sizes=\"auto, (max-width: 252px) 100vw, 252px\" \/><\/a><\/figure>\n<\/div><ul class=\"wp-block-list\">\n<li>From the main interface, click <strong>Browse<\/strong> to select OST file you want to convert. If you don&rsquo;t know the file&rsquo;s location, click <strong>Find<\/strong>.<\/li>\n<\/ul><figure class=\"wp-block-image\"><img decoding=\"async\" class=\"apply-gradient-on-post-images\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2017\/11\/1-3.png\" alt=\"Stellar\"><\/figure><ul class=\"wp-block-list\">\n<li>Click&nbsp;<strong>Convert <\/strong>to scan the file. Once the scanning is completed, you can find a list of all the converted files in a three-pane structure, under the root node. This will show the list of all the converted files in a three-pane structure, under the root node.<\/li>\n\n\n\n<li>From this&nbsp;<strong>preview window,<\/strong>&nbsp;click the desired files to preview them.<\/li>\n<\/ul><figure class=\"wp-block-image\"><img decoding=\"async\" class=\"apply-gradient-on-post-images\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2017\/08\/4-2.png\" alt=\"Stellar\"><\/figure><ul class=\"wp-block-list\">\n<li>After previewing the contents, click <strong>Save Converted File<\/strong> under the<strong>&nbsp;Home <\/strong>tab to save the data.<\/li>\n\n\n\n<li>In the <strong>Save As<\/strong> window that pops up, select <strong>PST<\/strong>. Click <strong>Browse<\/strong> to provide the location where the converted file will be saved, and then click <strong>OK<\/strong>.<\/li>\n<\/ul><figure class=\"wp-block-image\"><img decoding=\"async\" class=\"apply-gradient-on-post-images\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2017\/11\/5-1.png\" alt=\"Stellar\"><\/figure><p>Now, your OST file is successfully converted into a PST file. You can import this file into Microsoft Outlook and access its contents.<\/p><h2 class=\"wp-block-heading\" id=\"how-to-import-pst-file-into-outlook?\"><strong>How to Import PST File into Outlook?<\/strong><\/h2><p>Follow these steps to import the PST file into Outlook:<\/p><h4 class=\"wp-block-heading\">In the case of <strong>Microsoft Outlook 2019\/2016\/2013 versions,<\/strong>&nbsp;you can practice these steps: <\/h4><ul class=\"wp-block-list\">\n<li>Open <strong>Microsoft Outlook<\/strong>.<\/li>\n\n\n\n<li>Go to File Menu, click <strong>Open &amp; Export<\/strong>.<\/li>\n\n\n\n<li>Go to <strong>Import\/Export<\/strong>.<\/li>\n\n\n\n<li>In the <strong>Import and Export Wizard<\/strong> window, go to <strong>Import from another program or file <\/strong>and click <strong>Next<\/strong>.<\/li>\n\n\n\n<li>In the <strong>Import a File <\/strong>dialog box that pops up, click <strong>Outlook Data File<\/strong>.<\/li>\n\n\n\n<li>Click <strong>Browse<\/strong> and locate the <strong>PST<\/strong> <strong>file<\/strong> you need to import. Then click <strong>Next<\/strong>.<\/li>\n\n\n\n<li>In the <strong>Import Outlook Data File<\/strong> dialog box that pops up, select the folders you want to import.<\/li>\n\n\n\n<li>Click <strong>Finish<\/strong>.<\/li>\n<\/ul><h4 class=\"wp-block-heading\">In the case of <strong>Microsoft Outlook 2010 version<\/strong>, follow the steps below: <\/h4><ul class=\"wp-block-list\">\n<li>Open <strong>Microsoft Outlook<\/strong>.<\/li>\n\n\n\n<li>Go to <strong>File<\/strong> &gt; <strong>Open<\/strong> &gt; <strong>Import<\/strong>.<\/li>\n\n\n\n<li>In the <strong>Import and Export Wizard<\/strong> that pops up, select <strong>Import from another program or file<\/strong> and click <strong>Next<\/strong>.<\/li>\n\n\n\n<li>Select <strong>Outlook Data File<\/strong> and click <strong>Next<\/strong>.<\/li>\n\n\n\n<li>Click <strong>Browse<\/strong> and locate the PST file you need to import and click <strong>Next<\/strong>.<\/li>\n\n\n\n<li>In the <strong>Import Outlook Data File<\/strong> window that pops up, select the folders you want to import.<\/li>\n\n\n\n<li>Click <strong>Finish<\/strong>.<\/li>\n<\/ul><h4 class=\"wp-block-heading\">In the case of&nbsp;<strong>Microsoft Outlook 2007\/2003 versions<\/strong>, follow the below-stated steps:<br><\/h4><ul class=\"wp-block-list\">\n<li>Open <strong>Microsoft Outlook<\/strong>.<\/li>\n\n\n\n<li>Click <strong>File<\/strong> and then click <strong>Import and Export<\/strong>.<\/li>\n\n\n\n<li>In the <strong>Import and Export Wizard<\/strong> window that pops up, select <strong>Import from another program or file<\/strong> and click <strong>Next<\/strong>.<\/li>\n\n\n\n<li>In the <strong>Import, a File<\/strong> dialog box that pops up, select <strong>Personal Folder File<\/strong> and click <strong>Next<\/strong>.<\/li>\n\n\n\n<li>Click <strong>Browse<\/strong> and locate the <strong>PST file<\/strong> you need to import. Then click <strong>Next<\/strong>.<\/li>\n\n\n\n<li>Under <strong>Import Personal Folder<\/strong>, select the folders you want to import.<\/li>\n\n\n\n<li>Click <strong>Finish<\/strong>.<\/li>\n<\/ul><h2 class=\"wp-block-heading\" id=\"\"><\/h2><p id=\"7\"><strong>Conclusion <\/strong><\/p><p>When an Outlook OST file gets corrupted, you can perform <strong>OST file repair<\/strong> either by using Outlook&rsquo;s built-in ScanPST utility. Alternatively, you can delete the OST file and recreate it by connecting to the Exchange mailbox. However, if the OST file isn&rsquo;t accessible or Outlook is not working, using an OST to PST converter tool such as Stellar Converter for OST&nbsp;is the best option to safely recover the data.<\/p><p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>OST file is an Outlook data file that is created when you&hellip; <a class=\"more-link\" href=\"https:\/\/www.stellarinfo.com\/blog\/repair-corrupt-outlook-ost-file\/\">Continue reading <span class=\"screen-reader-text\">How to Repair Corrupt OST File in Outlook<\/span><\/a><\/p>\n","protected":false},"author":7,"featured_media":65169,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[821],"tags":[402,627,539],"class_list":["post-6132","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-outlook-data-file","tag-corrupt-ost-file","tag-ost-to-pst-download","tag-repair-ost-file","entry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Repair Corrupt OST File in Outlook<\/title>\n<meta name=\"description\" content=\"Repair your corrupt OST file using a built-in utility tool (ScanPST.exe), update folder, or using advanced software like Stellar Converter for OST.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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