{"id":700,"date":"2019-04-23T13:06:19","date_gmt":"2019-04-23T13:06:19","guid":{"rendered":"https:\/\/www.arysontechnologies.com\/updates\/?p=700"},"modified":"2026-03-10T11:12:03","modified_gmt":"2026-03-10T11:12:03","slug":"ost-file-does-not-access-in-outlook-2013","status":"publish","type":"post","link":"https:\/\/www.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/","title":{"rendered":"Fix OST File Not Accessible in Outlook 2016, 2019 &amp; 2013 \u2013 Complete Guide"},"content":{"rendered":"<p class=\"block_sum mb-3\"><em>IT Admins and Outlook users who work with Exchange, Microsoft 365, or IMAP accounts very often face the \u201cOST file does not access in Outlook\u201d issue. If this issue is not resolved, it can prevent users from accessing mailbox data such as emails, contacts, calendars, and tasks. It mainly occurs due to OST file corruption, synchronization failures, or profile misconfiguration. In this guide, we will discuss some of the key reasons behind this problem and explore some practical troubleshooting methods. Additionally, we will learn how to use the <a href=\"https:\/\/www.arysontechnologies.com\/ost-recovery.html\"><strong>Aryson OST Recovery Tool<\/strong><\/a>, which can help you repair and access corrupted OST files securely and efficiently.<\/em><span class=\"block_btn\"><a class=\"custom-download-btn\" href=\"https:\/\/www.arysontechnologies.com\/demo-version\/Aryson-OST-Recovery-Demo.exe\" rel=\"nofollow\"><i class=\"icon-windows\"><\/i> Download Now<\/a>\u00a0\u00a0<a class=\"custom-buy-btn\" href=\"https:\/\/www.arysontechnologies.com\/ost-recovery\/order-now.html\" rel=\"nofollow\"><i class=\"icon-windows\"><\/i> Purchase Now<\/a><\/span><\/p>\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 ez-toc-toggle\" style=\"cursor:pointer\">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.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/#What_is_an_OST_File_in_Outlook\" >What is an OST File in Outlook?<\/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.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/#Why_OST_File_does_not_Access_in_Outlook\" >Why OST File does not Access in Outlook?<\/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.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/#Common_Error_Messages_Related_to_OST_File_Issues\" >Common Error Messages Related to OST File Issues<\/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.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/#Preliminary_Checks_Before_Fixing_OST_File_Issues\" >Preliminary Checks Before Fixing OST File Issues<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/#Best_Methods_to_Fix_the_OST_File_Not_Accessible_in_Outlook\" >Best Methods to Fix the OST File Not Accessible in Outlook<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/#Method_1_Recreate_the_OST_File\" >Method 1: Recreate the OST File<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/#Steps_to_perform_are_as_follows\" >Steps to perform are as follows:<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/#Method_2_Repair_Outlook_Profile\" >Method 2: Repair Outlook Profile<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/#Steps_to_Repair_the_Outlook_Profile\" >Steps to Repair the Outlook Profile<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/#Method_3_Use_ScanPST_Tool\" >Method 3: Use ScanPST Tool<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/#Steps_to_Use_the_ScanPST_Tool\" >Steps to Use the ScanPST Tool\u00a0<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/#Method_4_Automated_Software_to_Access_Corrupt_OST_File\" >Method 4: Automated Software to Access Corrupt OST File<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/#Simple_Steps_to_Repair_the_Corrupted_OST_File\" >Simple Steps to Repair the Corrupted OST File\u00a0<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/#Conclusion\" >Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/#FAQs\" >FAQs<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"What_is_an_OST_File_in_Outlook\"><\/span>What is an OST File in Outlook?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>An OST file stands for <strong>Offline Storage Table<\/strong> file in MS Outlook. It is a local data file that can store a synchronized copy of mailbox data from <strong>Microsoft Exchange, Office 365, or an IMAP account.<\/strong> Moreover, it allows users to access their <strong>emails, contacts, calendars, and other mailbox items<\/strong> even without an internet connection and automatically syncs changes once the connection is restored.<\/p>\n<h2 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Why_OST_File_does_not_Access_in_Outlook\"><\/span>Why OST File does not Access in Outlook?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Listed below are some of the reasons why your Outlook 2016 OST file not opening. Review each one of them carefully and determine which one is responsible in your case.\u00a0<\/p>\n<ul>\n<li>A <strong>corrupted or damaged OST file<\/strong> can prevent Outlook from accessing mailbox data.<\/li>\n<li>Even an incorrect or <strong>corrupted Outlook profile<\/strong> may trigger the corruption of the OST file.\u00a0<\/li>\n<li>You might have <strong>shut down Outlook incorrectly<\/strong>, which damaged the OST file.\u00a0<\/li>\n<li>Moreover, <strong>synchronization issues<\/strong> can also make the OST file inaccessible.<\/li>\n<li>Additionally, an <strong>oversized OST file<\/strong> might fail to open properly.<\/li>\n<li>Also, the <strong>Virus, malware attacks<\/strong>, or system errors can corrupt the OST file in Outlook.<\/li>\n<\/ul>\n<h3 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Common_Error_Messages_Related_to_OST_File_Issues\"><\/span>Common Error Messages Related to OST File Issues<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>\u201cCannot open your default email folders.\u201d<\/strong><\/li>\n<li>\u201cOST file cannot be accessed.\u201d<\/li>\n<li>\u201cOutlook data file is in use.\u201d<\/li>\n<li>\u201cErrors have been detected in the file.\u201d<\/li>\n<\/ul>\n<h2 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Preliminary_Checks_Before_Fixing_OST_File_Issues\"><\/span>Preliminary Checks Before Fixing OST File Issues<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Before you begin the recovery process, it is important to follow the pre-recovery checklist to fix the \u201cOutlook 2019 OST file not accessible\u201d error.\u00a0<\/p>\n<ol>\n<li>Make sure to resolve <strong>temporary glitches<\/strong> in Outlook or the system.\u00a0<\/li>\n<li>Check <strong>internet connectivity<\/strong> &amp; check whether Exchange is accessible.<\/li>\n<li><strong>Cross-Verify the Outlook profile<\/strong> is correctly configured.<\/li>\n<li>Disable <strong>unnecessary Outlook add-ins<\/strong> that may interfere with OST file access.<\/li>\n<li>Check whether there is <strong>sufficient disk space<\/strong> available on the system drive.<\/li>\n<li><strong>Review the folder permissions<\/strong> to confirm proper access to the OST file location.<\/li>\n<\/ol>\n<h2 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Best_Methods_to_Fix_the_OST_File_Not_Accessible_in_Outlook\"><\/span>Best Methods to Fix the OST File Not Accessible in Outlook<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Now, as you have followed the pre-recovery checks, let us discuss some of the reliable fixes to resolve the OST file not accessible issue in MS Outlook.\u00a0<\/p>\n<ul>\n<li><strong>Recreate the OST File\u00a0<\/strong><\/li>\n<li>Repair the Corrupted Outlook Profile\u00a0<\/li>\n<li>Use the ScanPST Tool\u00a0<\/li>\n<li>Use and Advanced Recovery Software\u00a0<\/li>\n<\/ul>\n<h3 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Method_1_Recreate_the_OST_File\"><\/span>Method 1: Recreate the OST File<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>An OST file is only a cached copy of mailbox data that is stored on the Microsoft Exchange or IMAP server. In case the file becomes corrupted or inaccessible, you can simply delete or disable the existing OST file. After that, Outlook will automatically recreate a new OST file when it reconnects to the server.<\/p>\n<h4 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Steps_to_perform_are_as_follows\"><\/span>Steps to perform are as follows:<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ol>\n<li>Firstly, close the <strong>Microsoft Outlook<\/strong> application completely.<\/li>\n<li>After that, press the <strong>Win + R<\/strong> shortcut keys.\u00a0<\/li>\n<li>In the textbox, type <strong>%localappdata%\\Microsoft\\Outlook<\/strong>, and press <strong>Enter<\/strong>.<\/li>\n<li>Now, <strong>browse the .ost file<\/strong> associated with your current Outlook profile.<\/li>\n<li>If required, you can <strong>rename this file<\/strong> or delete the OST file.<\/li>\n<li>At last, <strong>restart Outlook<\/strong> and <strong>verify <\/strong>whether the \u201cOST file does not access in Outlook\u201d issue is resolved or not.\u00a0<\/li>\n<\/ol>\n<h3 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Method_2_Repair_Outlook_Profile\"><\/span>Method 2: Repair Outlook Profile<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Sometimes the issue takes place due to a corrupted Outlook profile rather than the OST file itself. In such a situation, you can simply create a new profile, which will rebuild the account settings and generate a fresh OST file, restoring the mailbox access.<\/p>\n<h4 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Steps_to_Repair_the_Outlook_Profile\"><\/span>Steps to Repair the Outlook Profile<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ol>\n<li>First, open the <strong>Control Panel<\/strong> on your existing system.<\/li>\n<li>After that, click on <strong>Mail (Microsoft Outlook).<\/strong><\/li>\n<li>Then, select the <strong>Show Profiles<\/strong> option.<\/li>\n<li>Now, click on the <strong>Add <\/strong>option and <strong>provide a name<\/strong> for the new profile.<\/li>\n<li>Next, <strong>set up your email account<\/strong> with the required credentials.<\/li>\n<li>After that, select the <strong>Always use this profile<\/strong> option &amp; choose the newly created profile.<\/li>\n<li>At last, run <strong>Outlook <\/strong>again &amp; verify if the \u201cOutlook 2013 OST file issue\u201d is resolved.<\/li>\n<\/ol>\n<h3 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Method_3_Use_ScanPST_Tool\"><\/span>Method 3: Use ScanPST Tool<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Microsoft provides the users with a built-in utility called the <a title=\"Inbox Repair Tool\" href=\"https:\/\/www.arysontechnologies.com\/updates\/download-scanpst-exe-tool\/\" target=\"_blank\" rel=\"noopener\"><strong>Inbox Repair Tool<\/strong><\/a> (SCANPST.exe). This tool scans the Outlook data file for corruption and tries to repair the detected errors. It is commonly used when Outlook shows error messages that indicate data file corruption.<\/p>\n<h4 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Steps_to_Use_the_ScanPST_Tool\"><\/span>Steps to Use the ScanPST Tool\u00a0<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>Close the <strong>MS Outlook application<\/strong> before you begin the repair process.<\/li>\n<li>After that, navigate to the <strong>Outlook installation<\/strong> directory (for example):<\/li>\n<\/ul>\n<table border=\"1\">\n<tbody>\n<tr>\n<td>\n<p><strong>C:\\Program Files (x86)\\Microsoft Office\\root\\Office16<\/strong><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ul>\n<li>Then, browse the <strong>SCANPST.exe<\/strong> and open it.\u00a0<\/li>\n<li>Click on the <strong>Browse <\/strong>option &amp; select the <strong>Outlook data<\/strong> file to scan.<\/li>\n<li>After that, click <strong>Start <\/strong>to begin the scan process.<\/li>\n<li>If errors are detected, click <strong>Repair <\/strong>to fix the issues.<\/li>\n<li>After the repair completes, restart <strong>Outlook <\/strong>and check the mailbox.<\/li>\n<\/ul>\n<p><strong>Additional Note: <\/strong>If none of the above recovery options helped you, the actual issue might reside in the OST file itself. If not repaired, it can result in permanent inaccessibility of files. Therefore, use the automated software given below to repair the corrupted OST files in Outlook.<\/p>\n<h3 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Method_4_Automated_Software_to_Access_Corrupt_OST_File\"><\/span>Method 4: Automated Software to Access Corrupt OST File<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The <strong>Aryson OST Recovery Tool<\/strong> is one of the most reliable recovery solutions that helps IT admins and technicians to <a title=\"Repair Corrupt OST File\" href=\"https:\/\/www.arysontechnologies.com\/blog\/repair-corrupt-ost-file\/\" target=\"_blank\" rel=\"noopener\"><strong>repair corrupted OST file<\/strong><\/a> and recover data successfully. It can efficiently restore emails, contacts, calendars, tasks, and journals. Moreover, it offers three recovery modes: <strong>Standard, Advanced, and Deep Mode o<\/strong>f recovery. Additionally, it offers various advanced filters like the <strong>date range filter, remove duplicate files,<\/strong> etc., to remove data duplication. The software supports Outlook encryption and allows users to export recovered data to <strong>PST, MSG, DBX, EML, MBOX, and archive formats <\/strong>directly. Using the same software, you can <a title=\"fix Outlook error code 0x80072f06\" href=\"https:\/\/www.arysontechnologies.com\/updates\/how-to-fix-outlook-getting-error-code-0x80072f06\/\" target=\"_blank\" rel=\"noopener\"><strong>fix Outlook error code 0x80072f06<\/strong><\/a>. Also, it supports <strong>Outlook 2021 and earlier versions<\/strong> on Windows systems.<\/p>\n<h4 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Simple_Steps_to_Repair_the_Corrupted_OST_File\"><\/span>Simple Steps to Repair the Corrupted OST File\u00a0<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ol>\n<li>First, download &amp; run the <strong>Aryson OST Recovery Tool<\/strong> on your system. <img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full\" src=\"https:\/\/www.arysontechnologies.com\/updates\/wp-content\/uploads\/2018\/11\/1.webp\" width=\"800\" height=\"427\" \/><\/li>\n<li>Then, <strong>load <\/strong>the desired corrupted OST files to recover &gt;&gt; <strong>Next<\/strong>.<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full\" src=\"https:\/\/www.arysontechnologies.com\/updates\/wp-content\/uploads\/2018\/11\/2.webp\" width=\"800\" height=\"426\" \/><\/li>\n<li>After that, choose among the <strong>Standard, Advanced, or Deep modes<\/strong>.<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full\" src=\"https:\/\/www.arysontechnologies.com\/updates\/wp-content\/uploads\/2018\/11\/3.webp\" width=\"800\" height=\"426\" \/><\/li>\n<li>The software will <strong>scan the selected OST files<\/strong>,&gt;&gt; click <strong>OK<\/strong>.<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full\" src=\"https:\/\/www.arysontechnologies.com\/updates\/wp-content\/uploads\/2018\/11\/4.webp\" width=\"800\" height=\"427\" \/><\/li>\n<li>Next, <strong>cross-verify<\/strong> the required OST files before saving them.<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full\" src=\"https:\/\/www.arysontechnologies.com\/updates\/wp-content\/uploads\/2018\/11\/5.webp\" width=\"800\" height=\"427\" \/><\/li>\n<li>Now, select the <strong>required output format<\/strong> and use the <strong>advanced features<\/strong>.<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full\" src=\"https:\/\/www.arysontechnologies.com\/updates\/wp-content\/uploads\/2018\/11\/6.webp\" width=\"800\" height=\"427\" \/><\/li>\n<li>Provide the <strong>path to save <\/strong>the output file &amp; click on the <strong>OK <\/strong>button.<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full\" src=\"https:\/\/www.arysontechnologies.com\/updates\/wp-content\/uploads\/2018\/11\/7.webp\" width=\"800\" height=\"427\" \/><\/li>\n<\/ol>\n<h2 class=\"main_heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>As we discussed above, an OST file does not access in Outlook due to several reasons, such as file corruption, profile issues, or synchronization problems. Following the pre-recovery checklist, trying the manual troubleshooting and automated software, the user can simplify the recovery process. However, the manual methods work well if the issue resides in the OST file; opt for the above automated recovery software. If you get stuck anywhere in the recovery process, reach out to our tech support team for personalised support.\u00a0<\/p>\n<h2 class=\"faq-main_heading\"><span class=\"ez-toc-section\" id=\"FAQs\"><\/span>FAQs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1773140504095\"><strong class=\"schema-faq-question\"><strong>Q1. Why is my OST file not opening in Outlook 2016, 2019, or 2021?<\/strong><\/strong> <p class=\"schema-faq-answer\"><strong>Ans- <\/strong>An OST file may not open in Outlook due to corruption, synchronization issues with the Exchange server, a damaged Outlook profile, oversized OST files, or improper system shutdown. These issues can prevent Outlook from accessing the offline mailbox data stored in the OST file.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1773140525141\"><strong class=\"schema-faq-question\"><strong>Q2. Can I recreate an OST file if it becomes inaccessible?<\/strong><\/strong> <p class=\"schema-faq-answer\"><strong>Ans- <\/strong>Yes, you can recreate OST file in Outlook because it is a cached copy of the mailbox stored on the mail server. However, there are some manual methods; for a secure recovery, you must use the Aryson OST Recovery Tool.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1773140544672\"><strong class=\"schema-faq-question\"><strong>Q3. Can ScanPST repair an OST file in Outlook?<\/strong><\/strong> <p class=\"schema-faq-answer\"><strong>Ans- Yes, <\/strong>the ScanPST repairs an OST file in Outlook. However, for severe corruption, it is advised to use the above automated software.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1773140559822\"><strong class=\"schema-faq-question\"><strong>Q4. Is it possible to convert an OST file to PST format?<\/strong><\/strong> <p class=\"schema-faq-answer\"><strong>Ans- <\/strong>Yes, with the help of the Aryson OST Recovery Tool, you can convert an OST file to PST format.\u00a0<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1773140572966\"><strong class=\"schema-faq-question\"><strong>Q5. What happens if I delete an OST file from my system?<\/strong><\/strong> <p class=\"schema-faq-answer\"><strong>Ans- <\/strong>Deleting an OST file does not permanently delete mailbox data because the file is only a local cache of server data. When Outlook reconnects to the Exchange or IMAP server, it automatically creates a new OST file and resynchronizes all mailbox items.<\/p> <\/div> <\/div>\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;700&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;Fix OST File Not Accessible in Outlook 2016, 2019 \\u0026amp; 2013 \u2013 Complete Guide&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>IT Admins and Outlook users who work with Exchange, Microsoft 365, or IMAP accounts very often face the \u201cOST file<a class=\"read-more ml-1 main-read-more\" href=\"https:\/\/www.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/\">Read More<\/a><\/p>\n","protected":false},"author":7,"featured_media":701,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-700","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-outlook-error"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Fix OST File Access Issues in Outlook 2016, 2019 &amp; 2013 Easily<\/title>\n<meta name=\"description\" content=\"Explore methods to resolve OST file access issues in Outlook easily. 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Why is my OST file not opening in Outlook 2016, 2019, or 2021?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<strong>Ans- <\\\/strong>An OST file may not open in Outlook due to corruption, synchronization issues with the Exchange server, a damaged Outlook profile, oversized OST files, or improper system shutdown. These issues can prevent Outlook from accessing the offline mailbox data stored in the OST file.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.arysontechnologies.com\\\/updates\\\/ost-file-does-not-access-in-outlook-2013\\\/#faq-question-1773140525141\",\"position\":2,\"url\":\"https:\\\/\\\/www.arysontechnologies.com\\\/updates\\\/ost-file-does-not-access-in-outlook-2013\\\/#faq-question-1773140525141\",\"name\":\"Q2. 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He enjoys conducting research and generating information that assists database administrators, businesses, and novices in resolving issues with MS SQL Server, MySQL databases, Cloud Computing, and Microsoft Exchange.","sameAs":["https:\/\/www.linkedin.com\/in\/rohan-wiese-writer\/"],"url":"https:\/\/www.arysontechnologies.com\/updates\/author\/rohanwiese\/"},{"@type":"Question","@id":"https:\/\/www.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/#faq-question-1773140504095","position":1,"url":"https:\/\/www.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/#faq-question-1773140504095","name":"Q1. Why is my OST file not opening in Outlook 2016, 2019, or 2021?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans- <\/strong>An OST file may not open in Outlook due to corruption, synchronization issues with the Exchange server, a damaged Outlook profile, oversized OST files, or improper system shutdown. These issues can prevent Outlook from accessing the offline mailbox data stored in the OST file.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/#faq-question-1773140525141","position":2,"url":"https:\/\/www.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/#faq-question-1773140525141","name":"Q2. Can I recreate an OST file if it becomes inaccessible?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans- <\/strong>Yes, you can recreate OST file in Outlook because it is a cached copy of the mailbox stored on the mail server. However, there are some manual methods; for a secure recovery, you must use the Aryson OST Recovery Tool.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/#faq-question-1773140544672","position":3,"url":"https:\/\/www.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/#faq-question-1773140544672","name":"Q3. Can ScanPST repair an OST file in Outlook?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans- Yes, <\/strong>the ScanPST repairs an OST file in Outlook. However, for severe corruption, it is advised to use the above automated software.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/#faq-question-1773140559822","position":4,"url":"https:\/\/www.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/#faq-question-1773140559822","name":"Q4. Is it possible to convert an OST file to PST format?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans- <\/strong>Yes, with the help of the Aryson OST Recovery Tool, you can convert an OST file to PST format.\u00a0","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/#faq-question-1773140572966","position":5,"url":"https:\/\/www.arysontechnologies.com\/updates\/ost-file-does-not-access-in-outlook-2013\/#faq-question-1773140572966","name":"Q5. What happens if I delete an OST file from my system?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<strong>Ans- <\/strong>Deleting an OST file does not permanently delete mailbox data because the file is only a local cache of server data. When Outlook reconnects to the Exchange or IMAP server, it automatically creates a new OST file and resynchronizes all mailbox items.","inLanguage":"en-US"},"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/www.arysontechnologies.com\/updates\/wp-json\/wp\/v2\/posts\/700","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.arysontechnologies.com\/updates\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.arysontechnologies.com\/updates\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.arysontechnologies.com\/updates\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.arysontechnologies.com\/updates\/wp-json\/wp\/v2\/comments?post=700"}],"version-history":[{"count":7,"href":"https:\/\/www.arysontechnologies.com\/updates\/wp-json\/wp\/v2\/posts\/700\/revisions"}],"predecessor-version":[{"id":2391,"href":"https:\/\/www.arysontechnologies.com\/updates\/wp-json\/wp\/v2\/posts\/700\/revisions\/2391"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.arysontechnologies.com\/updates\/wp-json\/wp\/v2\/media\/701"}],"wp:attachment":[{"href":"https:\/\/www.arysontechnologies.com\/updates\/wp-json\/wp\/v2\/media?parent=700"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.arysontechnologies.com\/updates\/wp-json\/wp\/v2\/categories?post=700"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.arysontechnologies.com\/updates\/wp-json\/wp\/v2\/tags?post=700"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}