When built-in tools fall short, professional solutions pick up the slack. Create your account and connect with a world of communities. If anyone finds a more permanent solution, I would appreciate it. It seems like something went wrong on Microsoft update and they might recall it or fix it, so we might need to wait untill that. Find solutions to common problems or get help from a support agent. We love reading your suggestions on new features and feedback about how you use our products!

VBScript does not run or you receive malicious code warning when using a custom form for Outlook

Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. The folder may have been deleted or the server where the folder is stored may be unavailable. You don't have appropriate permission to perform this operation. You don't have permission to create an entry in this folder. Right-click the folder, and then click Properties to check your permissions for the folder.

Outlook Known issues in May 2024 updates

Most of these crashes come down to one thing – problematic data files. When they get too large, go corrupt, or are poorly configured, things start to break. Please install the latest updates on your phone to resolve the issue. If you are an Outlook user and encountering connectivity problems with Microsoft 365 mailbox, the steps above may correct the problem. Otherwise, the probably culprit is a damaged OST file. Use the Stellar Converter for OST to extract mail items from the backup (orphaned) OST file.



Microsoft Outlook is one of the best-known business-class email clients from Microsoft. It is a feature-rich application that allows users to manage multiple email accounts, calendars, contacts, and tasks. Outlook also offers several advanced features, like email tracking, read receipts, and email templates, making it a powerful tool for managing email-based workflows. However, sometimes, it can experience connectivity issues, especially when using a Microsoft 365 account.

Outlook known issues in the Nov 2017 updates

Outlook 2016 freezes when you try to preview an Excel file that's attached to an email. For more information about when builds are available for their respective channels, go to Update history for Microsoft 365. We're investigating the issue and will update this page when a fix is available. MAPI does not validate that a provider's DLL that it is requested to connection status shows disconnected load is registered correctly in MapiSVC.inf or even that it comes from the local machine. This can be exploited by creating a file together with an OLE object in such a way to cause MAPI to load a DLL from a network share when the OLE object is activated.

Outlook 2007 and Outlook 2010 display wrong languages

You may notice that All, Unread , Mentioned and other sort and filtering options, such as By date, and Newest are missing in Outlook above your email list. Using Cached Exchange Mode in complex environments can lead to painful sync delays. If a user has a large mailbox or lots of folder nesting, syncing might lag or even crash. Let’s look at what causes Outlook to crash, how you can fix it, and a smarter tool that takes a lot of the stress off your plate. On January 16, 2025, an update for Microsoft 365 Apps will be released in the Current Channel, as can be seen from the entry MC in the Microsoft 365 Message Center.

Outlook known issues in the July 2019 updates

• You don't have permission to create an entry in this folder.
• Alternatively, you can delete or rename the existing corrupt OST file and rebuild the OST file.
• Select the corrupted PST or OST using the file picker.
• Outlook also offers several advanced features, like email tracking, read receipts, and email templates, making it a powerful tool for managing email-based workflows.
• For more information, please see Outlook email setup.
• You can also add the secondary connected accounts (Gmail, Yahoo, etc.) in Outlook.com as additional accounts in the Outlook profile.
• We're investigating the issue and will update this page when a fix is available.
• Once PSTs start climbing past 2 GB, things get shaky.

Please see the ALTERNATIVE WORKAROUND section below. This occurs because custom form script is now disabled by default. Outlook crashes are never good, but you do not have to face them unprepared.

Outlook Known Issues in September 2021 updates

This can allow arbitrary code execution to occur. If you're using Outlook 2010, Outlook 2013 or Outlook 2016, how to fix Outlook not opening today uninstall and re-install iCloud to resolve this issue. For more information, please see Outlook email setup. After installing the September Public Update, Outlook 2007 displays mixed languages in the user interface.



The app might refuse to launch or crash at the splash screen. Once PSTs start climbing past 2 GB, things get shaky. Outlook slows down, crashes randomly, or fails to load entirely. Users often turn to Microsoft’s ScanPST tool, but it struggles with large files and doesn’t always finish the job. To edit a shared calendar, go online to your own Outlook.com calendar, open Calendar Outlook stuck updating folders solution for Windows 10, or use a mobile device.

Until you can install the Windows Update fix release, you can set a registry key that will cause Outlook to stop using the local Windows Search service. When this registry key is set, Outlook will use its own built-in search engine. The built-in search will display the message below to indicate it is not using the Windows Search service. To access the calendar shared with your Microsoft 365 for business account, you'll need to accept the invitation from Outlook on the web, iOS, or Android. If you've already clicked the Accept button in Outlook 2016, you won't be able to re-accept the invitation from another Outlook application. The person who sent you the invitation will need to remove your permissions and then send a new invitation.