{"id":3272,"date":"2022-05-30T07:26:05","date_gmt":"2022-05-30T07:26:05","guid":{"rendered":"https:\/\/www.emailsupport.us\/blog\/?p=3272"},"modified":"2022-06-02T12:32:28","modified_gmt":"2022-06-02T12:32:28","slug":"ost-is-not-an-outlook-data-file","status":"publish","type":"post","link":"https:\/\/www.emailsupport.us\/blog\/ost-is-not-an-outlook-data-file\/","title":{"rendered":"How to Settle OST is Not an Outlook Data File Error?"},"content":{"rendered":"<p>&nbsp;<\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Outlook is the preferable email client used for professional and personal work. It saved the files in the PST and OST file formats. The PST stores the items such as contacts, calendar events, email messages, etc. At the same time, the OST file is used when you have an Exchange account. The OST files also help to work offline or use the default Cached Exchange Mode. But while using the OST file, users came across an error stating that OST is not an Outlook data file. It can occur due to various reasons, which we will discuss in this blog. We also provide you with the best methods to fix the error effortlessly. Let\u2019s start with the reasons.<\/span><\/p>\n<blockquote><p><strong>Related Post:- <a target=\"_blank\" href=\"https:\/\/www.emailsupport.us\/blog\/how-to-repair-outlook-pst-files\/\" rel=\"noopener\">How to Repair Outlook PST files<\/a><\/strong><\/p><\/blockquote>\n<p>&nbsp;<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_76 counter-hierarchy ez-toc-counter ez-toc-grey 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.emailsupport.us\/blog\/ost-is-not-an-outlook-data-file\/#Grounds_for_%E2%80%9COST_is_Not_An_Outlook_Data_File%E2%80%9D\" >Grounds for \u201c.OST is Not An Outlook Data File\u201d<\/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.emailsupport.us\/blog\/ost-is-not-an-outlook-data-file\/#Steps_to_Settle_OST_is_Not_An_Outlook_Data_File_Error\" >Steps to Settle OST is Not An Outlook Data File Error<\/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.emailsupport.us\/blog\/ost-is-not-an-outlook-data-file\/#Method_1_Update_the_Windows_and_Restart\" >Method 1: Update the Windows and Restart<\/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.emailsupport.us\/blog\/ost-is-not-an-outlook-data-file\/#Method_2_Repair_Outlook_Profile_to_Fix_OST_is_Not_An_Outlook_Data_File_Error\" >Method 2: Repair Outlook Profile to Fix OST is Not An Outlook Data File Error<\/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.emailsupport.us\/blog\/ost-is-not-an-outlook-data-file\/#Method_3_Create_a_New_Outlook_Profile\" >Method 3: Create a New Outlook Profile<\/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.emailsupport.us\/blog\/ost-is-not-an-outlook-data-file\/#Method_4_Disable_Cached_Exchange_Mode\" >Method 4: Disable Cached Exchange Mode<\/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.emailsupport.us\/blog\/ost-is-not-an-outlook-data-file\/#Method_5_Settle_OST_is_not_an_Outlook_Data_File_by_Recreating_OST_File\" >Method 5: Settle OST is not an Outlook Data File by Recreating OST File<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.emailsupport.us\/blog\/ost-is-not-an-outlook-data-file\/#Finishing_Up\" >Finishing Up<\/a><\/li><\/ul><\/nav><\/div>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Grounds_for_%E2%80%9COST_is_Not_An_Outlook_Data_File%E2%80%9D\"><\/span><b>Grounds for \u201c.OST is Not An Outlook Data File\u201d<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">When the error occurs, an error message will pop up on your screen as shown below:<\/span><\/p>\n<p><a href=\"https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/OST-is-Not-An-Outlook-Data-File.webp\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/OST-is-Not-An-Outlook-Data-File-300x134.webp\" alt=\".OST is Not An Outlook Data File\" width=\"541\" height=\"242\" class=\" wp-image-3290 aligncenter\" srcset=\"https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/OST-is-Not-An-Outlook-Data-File-300x134.webp 300w, https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/OST-is-Not-An-Outlook-Data-File.webp 406w\" sizes=\"(max-width: 541px) 100vw, 541px\" \/><\/a><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">It mainly occurs when the OST file gets corrupted or damaged. Following are the other reasons:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">When the OST file is large in size.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Due to the virus\/malware infection.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">When there is a synchronization error between the Exchange Server and the Outlook.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Poor internet connection or damaged encryption key.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A sudden or forced shutdown of the system can be a reason.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.remosoftware.com\/fix-corrupt-outlook-profile\">Corrupt<\/a> Outlook profile.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">When you close the Outlook program forcefully.<\/span><\/li>\n<\/ul>\n<blockquote><p><strong>Related Post:- <a target=\"_blank\" href=\"https:\/\/www.emailsupport.us\/blog\/how-to-refresh-outlook\/\" rel=\"noopener\">How to refresh outlook<\/a><\/strong><\/p><\/blockquote>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Steps_to_Settle_OST_is_Not_An_Outlook_Data_File_Error\"><\/span><b>Steps to Settle OST is Not An Outlook Data File Error<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Fixing the OST file\u2019s inaccessible error is not a difficult task. You can fix the error with the following errors. But before fixing the error, it is suggested to <a target=\"_blank\" href=\"https:\/\/www.emailsupport.us\/blog\/how-to-backup-outlook-emails\/\" rel=\"noopener\"><strong>create a backup<\/strong><\/a> of the data in any external device to prevent any data loss. After creating the backup of the data, follow the methods.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Method_1_Update_the_Windows_and_Restart\"><\/span><b>Method 1: Update the Windows and Restart<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">When the OST file is not an Outlook data file error falls, the first step you have to do is to check for any Windows update. A pending update can be the possible reason why you are facing the error. To update the Windows\u00a0<\/span><\/p>\n<ol style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Firstly, go to the <strong>Start<\/strong> and choose <strong>Settings<\/strong>.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">After that, pick the <strong>Update and Security<\/strong> tab.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Now, choose <strong>Windows Update<\/strong> and click on <strong>Check for Updates<\/strong>.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">If any updates are available, install them.<\/span><\/li>\n<\/ol>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">After the update, Restart the system and open Outlook to check the error. If the error still persists, then follow method 2.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Method_2_Repair_Outlook_Profile_to_Fix_OST_is_Not_An_Outlook_Data_File_Error\"><\/span><b>Method 2: Repair Outlook Profile to Fix OST is Not An Outlook Data File Error<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">As we discussed above, this error mainly occurs due to a corrupted OST file which makes it inaccessible. So, to fix the error, repair the Outlook profile through the Outlook account settings. Here\u2019s how:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Firstly, go to the <strong>File<\/strong> and choose <strong>Account Settings<\/strong>, followed by <strong>Account Settings<\/strong>.<\/span><\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/Repair-Outlook-Profile.webp\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/Repair-Outlook-Profile-300x288.webp\" alt=\"Repair Outlook Profile\" width=\"441\" height=\"424\" class=\" wp-image-3292 aligncenter\" srcset=\"https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/Repair-Outlook-Profile-300x288.webp 300w, https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/Repair-Outlook-Profile.webp 437w\" sizes=\"(max-width: 441px) 100vw, 441px\" \/><\/a><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Then, you have to click on the <strong>Email<\/strong> tab and then pick your <strong>Account (Profile)<\/strong>.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">After that, click on the <strong>Repair<\/strong> option.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Now, follow the on-screen steps from the <strong>Repair Account window<\/strong>.\u00a0<\/span><\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/Repair-Outlook-Profile-2.webp\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/Repair-Outlook-Profile-2-300x214.webp\" alt=\"Repair Outlook Profile 2\" width=\"533\" height=\"380\" class=\" wp-image-3293 aligncenter\" srcset=\"https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/Repair-Outlook-Profile-2-300x214.webp 300w, https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/Repair-Outlook-Profile-2.webp 679w\" sizes=\"(max-width: 533px) 100vw, 533px\" \/><\/a><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Once the repair completes, open Outlook and check for the error.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">If you can\u2019t fix the OST is not an OST data file error by repairing the Outlook profile, then you can create a new Outlook profile to get rid of the error.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Method_3_Create_a_New_Outlook_Profile\"><\/span><b>Method 3: Create a New Outlook Profile<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Creating a new Outlook profile can help you fix the OST is not an Outlook data file error. Following are the steps to create:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">First of all, go to <strong>Start<\/strong> and pick <strong>Control Panel<\/strong>.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Secondly, tap on the <strong>Users Accounts<\/strong> tab and choose the <strong>Mail<\/strong> option.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Then, click on <strong>Show Profiles<\/strong> to fix the OST is not an Outlook data file error.<\/span><\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/Create-a-New-Outlook-Profile.webp\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/Create-a-New-Outlook-Profile-300x194.webp\" alt=\"Create a New Outlook Profile\" width=\"459\" height=\"297\" class=\" wp-image-3294 aligncenter\" srcset=\"https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/Create-a-New-Outlook-Profile-300x194.webp 300w, https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/Create-a-New-Outlook-Profile.webp 444w\" sizes=\"(max-width: 459px) 100vw, 459px\" \/><\/a><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Now, you have to click on the <strong>Add<\/strong> and then enter a new profile name. Click <strong>OK<\/strong>.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">After that, <strong>Add Account<\/strong> windows will appear, enter an email ID, name and password, and click on Next.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">From here, choose the New Profile option and enable the \u201c<strong>Always use this profile<\/strong>\u201d or pick the option of \u201c<strong>Prompt for a profile to use used<\/strong>\u201d. Click <strong>OK<\/strong>.<\/span><\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/Create-a-New-Outlook-Profile-2.webp\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/Create-a-New-Outlook-Profile-2-255x300.webp\" alt=\"Create a New Outlook Profile 2\" width=\"382\" height=\"449\" class=\" wp-image-3295 aligncenter\" srcset=\"https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/Create-a-New-Outlook-Profile-2-255x300.webp 255w, https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/Create-a-New-Outlook-Profile-2.webp 344w\" sizes=\"(max-width: 382px) 100vw, 382px\" \/><\/a><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">At last, restart your Outlook and choose the new Outlook Profile.<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Method_4_Disable_Cached_Exchange_Mode\"><\/span><b>Method 4: Disable Cached Exchange Mode<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">When you Disable the Cached Exchange Mode, you actually disable the Offline Mode. It will help you fix the OST is not an Outlook data file error. Following are the steps:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Firstly, launch your <strong>Outlook<\/strong> and move to the <strong>File<\/strong> tab.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Secondly, choose <strong>Account Settings<\/strong> and then pick <strong>Account Settings<\/strong>.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Now, choose your <strong>Outlook Profile<\/strong>.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">After that, click on <strong>Change<\/strong> and unmark the checkbox of \u201c<strong>Use Cached Exchange Mode<\/strong>\u201d. Click on <strong>Next<\/strong>.\u00a0<\/span><\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/Disable-Cached-Exchange-Mode.webp\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/Disable-Cached-Exchange-Mode-300x214.webp\" alt=\"Disable Cached Exchange Mode\" width=\"530\" height=\"378\" class=\" wp-image-3296 aligncenter\" srcset=\"https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/Disable-Cached-Exchange-Mode-300x214.webp 300w, https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/Disable-Cached-Exchange-Mode.webp 682w\" sizes=\"(max-width: 530px) 100vw, 530px\" \/><\/a><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Here, a pop-up will appear, click <strong>OK<\/strong> and then <strong>Finish<\/strong>.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">At last, restart your Outlook and check for the error.\u00a0<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Method_5_Settle_OST_is_not_an_Outlook_Data_File_by_Recreating_OST_File\"><\/span><b>Method 5: Settle OST is not an Outlook Data File by Recreating OST File<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">In the process, you have to recreate a new OST by moving or deleting the inaccessible OST file to a new location. Following are the steps:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Firstly, go to the <strong>File<\/strong> tab in your Outlook.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Secondly, choose <strong>Account Settings&gt;&gt;Account Settings<\/strong>.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Now, you have to click on the <strong>Data Files<\/strong> tab and then choose the OST file which is associated with your profile.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">After that, click on <strong>Open File Location<\/strong>. It will open a <strong>New File Explorer<\/strong> wizard showing your OST file location.<\/span><\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/Recreate-OST-File.webp\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/Recreate-OST-File-300x246.webp\" alt=\"Recreate OST File\" width=\"597\" height=\"489\" class=\"wp-image-3301 aligncenter\" srcset=\"https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/Recreate-OST-File-300x246.webp 300w, https:\/\/www.emailsupport.us\/blog\/wp-content\/uploads\/2022\/05\/Recreate-OST-File.webp 616w\" sizes=\"(max-width: 597px) 100vw, 597px\" \/><\/a><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"font-weight: 400;\" aria-level=\"1\">Here, close <strong>Outlook<\/strong> and, right-click on the OST file, click on <strong>Delete<\/strong>.<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Finally, open your Outlook.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">After opening, it will recreate a new OST file automatically and also fix the error.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><em><span style=\"font-weight: 400;\"><strong>Important:<\/strong> This only works when your Outlook email profile is active on the mail server.<\/span><\/em><\/p>\n<blockquote><p><strong>Related Post:- <a target=\"_blank\" href=\"https:\/\/www.emailsupport.us\/blog\/how-to-stop-spam-emails-in-outlook\/\" rel=\"noopener\">How to Stop Spam Emails in Outlook<\/a><\/strong><\/p><\/blockquote>\n<p>&nbsp;<\/p>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Finishing_Up\"><\/span><b>Finishing Up<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">The OST is not an Outlook data file that can pop up on your screen for various reasons. The main reason behind this is damaged or corrupted OST files. We derive all the possible causes and the troubleshooting methods to fix this with this blog. It is always suggested to create a backup of the Outlook data files. If you still face the error after following the above methods, then contact our <a target=\"_blank\" href=\"https:\/\/www.emailsupport.us\/microsoft-outlook-support\" rel=\"noopener\"><strong>Outlook experts<\/strong><\/a> to get a better solution.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; Outlook is the preferable email client used for professional and personal work. It saved the files in the PST and OST file formats. The PST stores the items such as contacts, calendar events, email messages, etc. At the same time, the OST file is used when you have an [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":3284,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[257],"tags":[1182,1181],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.10 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>OST Is Not An Outlook Data File Error [Solved]<\/title>\n<meta name=\"description\" content=\"OST is not an Outlook data file error that occurs when the OST file gets corrupt or damaged. To fix 1. Update Windows 2. Repair Outlook Profile 3. 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