{"id":186147,"date":"2025-10-10T12:14:39","date_gmt":"2025-10-10T12:14:39","guid":{"rendered":"https:\/\/www.stellarinfo.com\/blog\/?p=186147"},"modified":"2025-11-12T09:31:06","modified_gmt":"2025-11-12T09:31:06","slug":"outlook-crashes-when-opening-calendar-issue","status":"publish","type":"post","link":"https:\/\/www.stellarinfo.com\/blog\/outlook-crashes-when-opening-calendar-issue\/","title":{"rendered":"How to Resolve Outlook Crashes when Opening Calendar Issue?"},"content":{"rendered":"<?xml encoding=\"utf-8\" ?><?xml encoding=\"utf-8\" ?><p>Users often face an issue where their Outlook crashes when they open the calendar. This issue can occur in both classic and new Outlook versions. In new Outlook, it appears when clicking <strong>Show all<\/strong> option for calendars. When trying to access the calendar, this error forces users to restart their Outlook and switch to the old version. Users often see this error when accessing Outlook desktop client on the Windows 11. &nbsp;<\/p><p>Outlook crashing issue on opening calendar may occur due to underlying issues with the Windows, Outlook application, or the data file. This issue prevents users from performing actions, like scheduling meetings, interviews, appointments, training, event coordination, and many more.<\/p><p>This article will shed light on the causes of the Outlook crashes when opening the calendar issue and provide effective solutions to resolve it.<\/p><h2 class=\"wp-block-heading\" id=\"reasons-for-outlook-crashes-when-opening-calendar-issue\"><strong>Reasons for<\/strong><strong> <\/strong><strong>Outlook Crashes when Opening Calendar Issue<\/strong><\/h2><p>Outlook crashes when opening calendar or shared calendar issue can occur due to one or more of the reasons mentioned below:<\/p><ul class=\"wp-block-list\">\n<li>Problematic Outlook add-ins<\/li>\n\n\n\n<li>Lack of permissions to view the calendar<\/li>\n\n\n\n<li>Outdated Outlook profile<\/li>\n\n\n\n<li><a href=\"https:\/\/www.stellarinfo.com\/blog\/reasons-outlook-pst-file-corruption\/\">Corruption in Outlook data (PST) file<\/a><\/li>\n\n\n\n<li>Outdated Outlook application<\/li>\n\n\n\n<li>Windows patches are missing<\/li>\n\n\n\n<li>Weather checkbox on the calendar is enabled<\/li>\n<\/ul><h2 class=\"wp-block-heading\" id=\"solutions-to-resolve-outlook-crashes-when-opening-calendar-issue\"><strong>Solutions to Resolve<\/strong><strong> <\/strong><strong>Outlook Crashes when Opening Calendar Issue<\/strong><\/h2><p>The Outlook crashes when opening calendar issue can occur due to corrupt cache files or settings. You can clear the Outlook cache files and then try resetting the calendar view to resolve it. To do so, in your Outlook, click <strong>View<\/strong> tab and then click <strong>Reset<\/strong> <strong>View<\/strong>. Next, to check whether the problem is resolved or not, try to open the calendar. If not, then try the following solutions.<\/p><h3 class=\"wp-block-heading\">Solution 1 &ndash; Download Outlook Updates<\/h3><p>Some Outlook users have revealed coming across the Outlook crashes when opening the calendar issue in Outlook 2016, right after the automatic Microsoft Office security patches <a href=\"https:\/\/support.microsoft.com\/en-au\/topic\/description-of-the-security-update-for-office-2016-april-8-2025-kb5002700-a117656e-2724-449f-8245-2d5128de1241\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">(KB5002700)<\/a> have been installed on the system. If this is also the case with you, then you can try rolling back the latest updates or restoring the system. Afterward, download the latest <a href=\"https:\/\/support.microsoft.com\/en-us\/topic\/april-10-2025-update-for-office-2016-kb5002623-d60c1f31-bb7c-4426-b8f4-69186d7fc1e5\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">April 10, 2025, update for Office 2016 (KB5002623)<\/a>. This workaround can assist you in resolving the issue.<\/p><h3 class=\"wp-block-heading\"><strong>Solution 2 &ndash; Open Outlook in Safe mode to Resolve Add-in Issue<\/strong><\/h3><p>Corrupt add-ins can crash Outlook when you try opening the calendar in Outlook. You can open the application in safe mode to check for the troublesome add-ins. For this, open the <strong>Run<\/strong> window on your system (press Windows+R). Under that window, type Outlook \/safe as it is, and click <strong>OK<\/strong>.<\/p><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"402\" height=\"208\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/Run-command-Window-.jpg\" alt=\" Use this command Outlook \/safe on Run command\" class=\"wp-image-186154 apply-gradient-on-post-images\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/Run-command-Window-.jpg 402w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/Run-command-Window--300x155.jpg 300w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/Run-command-Window--150x78.jpg 150w\" sizes=\"auto, (max-width: 402px) 100vw, 402px\" \/><\/figure><p>The Outlook application will open in the safe mode. Now, try to open the calendar in your Outlook. If it opens without any issue, then it is clear that a faulty add-in was behind the &ldquo;Outlook not responding when opening calendar&rdquo; issue. So, disable the add-ins by following the below steps:<\/p><ul class=\"wp-block-list\">\n<li>Go to&nbsp;<strong>File&nbsp;&gt;&nbsp;Options.&nbsp;<\/strong><\/li>\n\n\n\n<li>Under the <strong>Outlook options<\/strong> window, select the <strong>Add-ins <\/strong>option.<\/li>\n<\/ul><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"826\" height=\"680\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/Outlook-options-window.jpg\" alt=\" select the Add-ins option\" class=\"wp-image-186156 apply-gradient-on-post-images\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/Outlook-options-window.jpg 826w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/Outlook-options-window-300x247.jpg 300w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/Outlook-options-window-768x632.jpg 768w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/Outlook-options-window-150x123.jpg 150w\" sizes=\"auto, (max-width: 826px) 100vw, 826px\" \/><\/figure><ul class=\"wp-block-list\">\n<li>Under View and manage Office add-ins, select <strong>COM Add-ins<\/strong> from the <strong>Manage <\/strong>dropdown. Click <strong>Go.<\/strong><\/li>\n\n\n\n<li>Unselect all the add-ins and click&nbsp;<strong>OK.<\/strong><\/li>\n\n\n\n<li>Next, click <strong>File<\/strong> and then click the <strong>Exit<\/strong> option to close your Outlook.<\/li>\n\n\n\n<li>Now, try to open Outlook normally and start accessing calendar option.<\/li>\n<\/ul><h3 class=\"wp-block-heading\"><strong>Solution 3 &ndash; Disable the Show Weather on the Calendar Option<\/strong><\/h3><p>If Outlook fails to gather the weather information, users may encounter Outlook crashes when opening the calendar issue. To resolve this, they can check the Outlook options and disable the Show weather on the calendar checkbox by using the following steps:<\/p><ul class=\"wp-block-list\">\n<li>In your Outlook, click <strong>File &gt; Options.<\/strong><\/li>\n\n\n\n<li>In Outlook Options, select <strong>Calendar<\/strong>, and then scroll-down to <strong>Weather<\/strong>. Check and unselect &ldquo;<strong>Show weather on the calendar<\/strong>&rdquo; option. Click <strong>OK.<\/strong><\/li>\n<\/ul><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"823\" height=\"681\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/Show-weather-on-the-calendar.jpg\" alt=\"Check and unselect &ldquo;Show weather on the calendar&rdquo; option\" class=\"wp-image-186157 apply-gradient-on-post-images\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/Show-weather-on-the-calendar.jpg 823w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/Show-weather-on-the-calendar-300x248.jpg 300w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/Show-weather-on-the-calendar-768x635.jpg 768w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/Show-weather-on-the-calendar-150x124.jpg 150w\" sizes=\"auto, (max-width: 823px) 100vw, 823px\" \/><\/figure><h3 class=\"wp-block-heading\">Solution 4 &ndash; Check and Grant Calendar Permissions<\/h3><p>Users may encounter Outlook crashes when opening the calendar issue if they don&rsquo;t have sufficient permissions to open or modify the calendars or synchronization fails due to permission issue. They can check and provide the required permissions to fix the issue. Here are the steps to check and provide the permissions:<\/p><ul class=\"wp-block-list\">\n<li>Go to the calendar folder, right-click on it, and then click <strong>Properties.<\/strong><\/li>\n<\/ul><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"333\" height=\"636\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/calendar-folder.jpg\" alt=\"Go to the calendar folder, right-click  on it \" class=\"wp-image-186158 apply-gradient-on-post-images\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/calendar-folder.jpg 333w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/calendar-folder-157x300.jpg 157w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/calendar-folder-150x286.jpg 150w\" sizes=\"auto, (max-width: 333px) 100vw, 333px\" \/><\/figure><ul class=\"wp-block-list\">\n<li>Under the <strong>General<\/strong> part,<strong> <\/strong>make sure&nbsp;<strong>Read-Only<\/strong>&nbsp;is not checked. If checked, uncheck it and click&nbsp;<strong>OK<\/strong>.<\/li>\n\n\n\n<li>Next, click <strong>Security<\/strong> and check the file permissions.<\/li>\n\n\n\n<li>Make sure the <strong>full control <\/strong>option is enabled. If not, then grant the permission. Click <strong>Apply<\/strong>&nbsp;and then&nbsp;<strong>OK. <\/strong><\/li>\n\n\n\n<li>Next, on the same <strong>Properties<\/strong> window, click the <strong>Synchronization<\/strong> tab to check synchronization status.<\/li>\n<\/ul><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"389\" height=\"536\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/calendar-Properties-.jpg\" alt=\"click the Synchronization tab to check synchronization status\" class=\"wp-image-186160 apply-gradient-on-post-images\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/calendar-Properties-.jpg 389w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/calendar-Properties--218x300.jpg 218w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/calendar-Properties--150x207.jpg 150w\" sizes=\"auto, (max-width: 389px) 100vw, 389px\" \/><\/figure><ul class=\"wp-block-list\">\n<li>Check the information under <strong>Last Synchronized on<\/strong> timestamp, the <strong>Server folder contains<\/strong> items, and the <strong>Offline folder contains<\/strong> items.<\/li>\n\n\n\n<li>If the number of items is different and the timestamp is old, that means there are synchronization issues. To resolve this, first troubleshoot the cause behind it. For this, you can go to the Outlook navigation pane and check the <strong>Sync issues<\/strong> folder.<\/li>\n<\/ul><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"308\" height=\"507\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/the-Sync-issues-folder-1.jpg\" alt=\"check the Sync issues folder\" class=\"wp-image-186161 apply-gradient-on-post-images\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/the-Sync-issues-folder-1.jpg 308w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/the-Sync-issues-folder-1-182x300.jpg 182w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/the-Sync-issues-folder-1-150x247.jpg 150w\" sizes=\"auto, (max-width: 308px) 100vw, 308px\" \/><\/figure><ul class=\"wp-block-list\">\n<li>If you see any synchronization-related errors or issues indicating permission issues, then see the folder or contact your system administrator to resolve this.<\/li>\n<\/ul><h3 class=\"wp-block-heading\"><strong>Solution 5: Create New Profile<\/strong><\/h3><p>The Outlook crashes when opening calendar issue can also occur due to corruption in Outlook profile. If a corrupt profile is preventing the application from opening the calendar, then you can create a new profile. The steps are as follows:<\/p><ul class=\"wp-block-list\">\n<li>Close Outlook and open&nbsp;<strong>Control Panel<\/strong>.<\/li>\n\n\n\n<li>Navigate to&nbsp;<strong>User Accounts &gt; Mail<\/strong>&nbsp;and click on the&nbsp;<strong>Show Profiles<\/strong>&nbsp;button.<\/li>\n\n\n\n<li>Then, click&nbsp;<strong>Add<\/strong>.<\/li>\n<\/ul><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"425\" height=\"279\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/mail-setup.jpg\" alt=\"click on the&nbsp;Show Profiles\" class=\"wp-image-186163 apply-gradient-on-post-images\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/mail-setup.jpg 425w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/mail-setup-300x197.jpg 300w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/mail-setup-150x98.jpg 150w\" sizes=\"auto, (max-width: 425px) 100vw, 425px\" \/><\/figure><ul class=\"wp-block-list\">\n<li>Type any name for the new profile and click&nbsp;<strong>OK<\/strong>.<\/li>\n<\/ul><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"346\" height=\"407\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/add-new-profile-1-1.jpg\" alt=\"add new profile\" class=\"wp-image-186164 apply-gradient-on-post-images\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/add-new-profile-1-1.jpg 346w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/add-new-profile-1-1-255x300.jpg 255w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/add-new-profile-1-1-150x176.jpg 150w\" sizes=\"auto, (max-width: 346px) 100vw, 346px\" \/><\/figure><ul class=\"wp-block-list\">\n<li>You will see a sign in window. &nbsp;To sign in, enter your email account credentials, such as username (email) and password.<\/li>\n\n\n\n<li>After the sign-in completes, restart your Outlook.<\/li>\n\n\n\n<li>From the drop-down, choose your new profile. After choosing the profile and click&nbsp;<strong>OK<\/strong>.<\/li>\n<\/ul><h3 class=\"wp-block-heading\">Solution 6 &ndash; Repair Outlook (MS Office)<\/h3><p>The Outlook may crash when opening the calendar if the Outlook program files are damaged or corrupted. In such a case, you can try repairing the Outlook (MS Office) program. To repair the program, follow these steps:<\/p><ul class=\"wp-block-list\">\n<li>Open the Control Panel.<\/li>\n\n\n\n<li>Click <strong>Uninstall a program<\/strong> under <strong>Programs. <\/strong><\/li>\n<\/ul><figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"542\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/Control-Panel-1024x542.jpg\" alt=\"Click Uninstall a program under Programs. \" class=\"wp-image-186165 apply-gradient-on-post-images\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/Control-Panel-1024x542.jpg 1024w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/Control-Panel-300x159.jpg 300w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/Control-Panel-768x406.jpg 768w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/Control-Panel-150x79.jpg 150w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/Control-Panel.jpg 1125w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><ul class=\"wp-block-list\">\n<li>A list of all installed problems will be displayed on the screen. Search for and right-click on <strong>Microsoft Office<\/strong>&nbsp;and select&nbsp;<strong>Change<\/strong>.<\/li>\n<\/ul><figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"539\" src=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/change-a-program-1024x539.jpg\" alt=\"right-click on Microsoft Office&nbsp;and select&nbsp;Change\" class=\"wp-image-186166 apply-gradient-on-post-images\" srcset=\"https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/change-a-program-1024x539.jpg 1024w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/change-a-program-300x158.jpg 300w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/change-a-program-768x405.jpg 768w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/change-a-program-150x79.jpg 150w, https:\/\/www.stellarinfo.com\/blog\/wp-content\/uploads\/2025\/10\/change-a-program.jpg 1120w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><ul class=\"wp-block-list\">\n<li>Continue to follow the onscreen prompts to repair Microsoft Office and Outlook.<\/li>\n<\/ul><p>After this process, don&rsquo;t forget to Restart the Outlook.<\/p><h3 class=\"wp-block-heading\">Solution 7 &ndash; Repair Corrupt PST File<\/h3><p>All the data in Outlook, including calendar events, contacts, etc., is stored in a PST file. If this file becomes corrupted for any reason, Outlook will fail to load or read the calendar entries and other email items from the file. As a result, when you try to open the corrupt or unreadable calendar items, your Outlook may crash or fail to respond. To prevent this, you can run free <a href=\"https:\/\/www.stellarinfo.com\/article\/download-free-scanpst-exe.php\">ScanPST.exe<\/a> to repair the PST file. This tool can help you scan and repair minor corrupted items in PST file. It may not work perfectly to repair severely corrupt large-sized PST files. Also, it deletes corrupt data instead of repairing it, which causes the risk of data loss.<\/p><p>In such a scenario, you can <a href=\"https:\/\/www.stellarinfo.com\/blog\/steps-to-repair-outlook-pst-files-without-scanpst-tool\/\">repair Outlook PST files without ScanPST tool<\/a>. The best option is to use Stellar Repair for Outlook. The tool can successfully address severe structure damage to the PST file and recreate all important components of the mailbox, including calendar entries, quickly, and maintain data integrity. The Technician version of the tool has an option to split and compact large-sized PST files. This assists in resolving the issues like &ldquo;Outlook crashes when opening calendar&rdquo; issue if Outlook application fails to load the calendars in a large PST file.<\/p><h2 class=\"wp-block-heading\" id=\"to-conclude\"><strong>To Conclude<\/strong><\/h2><p>You can face Outlook crashes when opening the calendar issue due to various reasons. Follow the solutions and workarounds mentioned in this guide to resolve this crashing problem. If corruption issues in the PST file is the cause of Outlook fails to load the calendar issue, then repair the PST file by running the Scanpst.exe utility. This utility can correct minor corruption issues but may stop working while repairing the PST file which is corrupted severely or is encrypted. If this utility didn&rsquo;t bring the desired results, take help from Stellar Repair for Outlook &ndash; an advanced&nbsp;<a href=\"https:\/\/www.stellarinfo.com\/outlook-pst-repair.php\" target=\"_blank\" rel=\"noreferrer noopener\">Outlook PST repair tool<\/a>. This tool can efficiently resolve the issue by fixing PST corruption and retrieving all the mailbox contents, including calendars, in a new PST file.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Users often face an issue where their Outlook crashes when they open&hellip; <a class=\"more-link\" href=\"https:\/\/www.stellarinfo.com\/blog\/outlook-crashes-when-opening-calendar-issue\/\">Continue reading <span class=\"screen-reader-text\">How to Resolve Outlook Crashes when Opening Calendar Issue?<\/span><\/a><\/p>\n","protected":false},"author":82,"featured_media":186243,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[825],"tags":[],"class_list":["post-186147","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-outlook-pst-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 Resolve Outlook Crashes when Opening Calendar Issue?<\/title>\n<meta name=\"description\" content=\"Does Outlook crash when opening calendar? 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