{"id":10758,"date":"2025-09-15T10:29:17","date_gmt":"2025-09-15T00:29:17","guid":{"rendered":"https:\/\/allinit.com.au\/solutions\/?p=10758"},"modified":"2025-09-15T10:29:44","modified_gmt":"2025-09-15T00:29:44","slug":"locating-old-outlook-ost-files","status":"publish","type":"post","link":"https:\/\/allinit.com.au\/solutions\/locating-old-outlook-ost-files\/","title":{"rendered":"Locating Old Outlook .OST Files"},"content":{"rendered":"<h1 data-start=\"100\" data-end=\"135\">Locating Old Outlook .OST Files<\/h1>\n<h2 data-start=\"137\" data-end=\"149\">Purpose<\/h2>\n<p data-start=\"150\" data-end=\"272\">Find where <strong data-start=\"161\" data-end=\"198\">Outlook Offline Data Files (.OST)<\/strong> are stored on your computer for troubleshooting, migration, or cleanup.<\/p>\n<hr data-start=\"274\" data-end=\"277\" \/>\n<h2 data-start=\"279\" data-end=\"300\">What You\u2019ll Need<\/h2>\n<ul data-start=\"301\" data-end=\"423\">\n<li data-start=\"301\" data-end=\"350\">\n<p data-start=\"303\" data-end=\"350\">A Windows PC with Microsoft Outlook installed<\/p>\n<\/li>\n<li data-start=\"351\" data-end=\"375\">\n<p data-start=\"353\" data-end=\"375\">File Explorer access<\/p>\n<\/li>\n<li data-start=\"376\" data-end=\"423\">\n<p data-start=\"378\" data-end=\"423\">Outlook profile configured on your computer<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"425\" data-end=\"428\" \/>\n<h2 data-start=\"430\" data-end=\"453\">Step-by-Step Guide<\/h2>\n<h3 data-start=\"455\" data-end=\"502\">Default OST File Location (Windows 10\/11)<\/h3>\n<ol data-start=\"503\" data-end=\"734\">\n<li data-start=\"503\" data-end=\"531\">\n<p data-start=\"506\" data-end=\"531\">Open <strong data-start=\"511\" data-end=\"528\">File Explorer<\/strong>.<\/p>\n<\/li>\n<li data-start=\"532\" data-end=\"625\">\n<p data-start=\"535\" data-end=\"549\">Navigate to:<\/p>\n<div class=\"contain-inline-size rounded-2xl relative bg-token-sidebar-surface-primary\">\n<div class=\"sticky top-9\">\n<div class=\"absolute end-0 bottom-0 flex h-9 items-center pe-2\">\n<div class=\"bg-token-bg-elevated-secondary text-token-text-secondary flex items-center gap-4 rounded-sm px-2 font-sans text-xs\"><\/div>\n<\/div>\n<\/div>\n<div class=\"overflow-y-auto p-4\" dir=\"ltr\"><code class=\"whitespace-pre!\"><span class=\"hljs-section\">C:\\Users\\&lt;YourUsername&gt;\\AppData\\Local\\Microsoft\\Outlook\\<\/span><br \/>\n<\/code><\/div>\n<\/div>\n<\/li>\n<li data-start=\"626\" data-end=\"734\">\n<p data-start=\"629\" data-end=\"674\">Look for files with the extension <strong data-start=\"663\" data-end=\"671\">.ost<\/strong>.<\/p>\n<ul data-start=\"678\" data-end=\"734\">\n<li data-start=\"678\" data-end=\"734\">\n<p data-start=\"680\" data-end=\"734\">Each file corresponds to an Outlook profile\/account.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<hr data-start=\"736\" data-end=\"739\" \/>\n<h3 data-start=\"741\" data-end=\"781\">Alternate Way via Outlook Settings<\/h3>\n<ol data-start=\"782\" data-end=\"1024\">\n<li data-start=\"782\" data-end=\"804\">\n<p data-start=\"785\" data-end=\"804\">Open <strong data-start=\"790\" data-end=\"801\">Outlook<\/strong>.<\/p>\n<\/li>\n<li data-start=\"805\" data-end=\"863\">\n<p data-start=\"808\" data-end=\"863\">Go to <strong data-start=\"814\" data-end=\"860\">File &gt; Account Settings &gt; Account Settings<\/strong>.<\/p>\n<\/li>\n<li data-start=\"864\" data-end=\"922\">\n<p data-start=\"867\" data-end=\"922\">Select your email account \u2192 click <strong data-start=\"901\" data-end=\"915\">Data Files<\/strong> tab.<\/p>\n<\/li>\n<li data-start=\"923\" data-end=\"969\">\n<p data-start=\"926\" data-end=\"969\">Note the file path of your <strong data-start=\"953\" data-end=\"961\">.ost<\/strong> file.<\/p>\n<\/li>\n<li data-start=\"970\" data-end=\"1024\">\n<p data-start=\"973\" data-end=\"1024\">Use <strong data-start=\"977\" data-end=\"994\">File Explorer<\/strong> to navigate to that folder.<\/p>\n<\/li>\n<\/ol>\n<hr data-start=\"1026\" data-end=\"1029\" \/>\n<h2 data-start=\"1031\" data-end=\"1058\">Tips for Best Practice<\/h2>\n<ul data-start=\"1059\" data-end=\"1487\">\n<li data-start=\"1059\" data-end=\"1186\">\n<p data-start=\"1061\" data-end=\"1186\">Do <strong data-start=\"1064\" data-end=\"1071\">not<\/strong> delete .OST files directly unless instructed by IT; Outlook can recreate them, but unsynced changes may be lost.<\/p>\n<\/li>\n<li data-start=\"1187\" data-end=\"1303\">\n<p data-start=\"1189\" data-end=\"1303\">If Outlook performance issues occur, consider <strong data-start=\"1235\" data-end=\"1261\">recreating the profile<\/strong> instead of manually deleting OST files.<\/p>\n<\/li>\n<li data-start=\"1304\" data-end=\"1399\">\n<p data-start=\"1306\" data-end=\"1399\">Backup important Outlook data using <strong data-start=\"1342\" data-end=\"1357\">.PST export<\/strong> (File &gt; Open &amp; Export &gt; Import\/Export).<\/p>\n<\/li>\n<li data-start=\"1400\" data-end=\"1487\">\n<p data-start=\"1402\" data-end=\"1487\">Use the OST file location for troubleshooting sync issues or freeing up disk space.<\/p>\n<\/li>\n<\/ul>\n<hr \/>\n<h3>Need Help?<\/h3>\n<blockquote><p>&nbsp;<\/p>\n<p><strong>Contact All in IT Solutions today for expert assistance.<\/strong><\/p>\n<ul>\n<li>Phone: 1300 255 464<\/li>\n<li>Visit: <a href=\"https:\/\/allinit.com.au\/solutions\/support\/\">Support Page<\/a><\/li>\n<\/ul>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>Locating Old Outlook .OST Files Purpose Find where Outlook Offline [&hellip;]<\/p>\n","protected":false},"author":13,"featured_media":10759,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"_mbp_gutenberg_autopost":false,"footnotes":""},"categories":[3517],"tags":[3529,3530,3528,3527],"class_list":["post-10758","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-support-hub","tag-iphone","tag-itunes","tag-macos","tag-windows"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Locating Old Outlook .OST Files - All in IT Solutions<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/allinit.com.au\/solutions\/locating-old-outlook-ost-files\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" 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