Read how to Add your Outlook.com account to another mail app. Currently, you can't use Outlook on Windows to edit calendars that are shared with your Outlook.com account, even if you've reconnected your Outlook.com account to Outlook. We're working to make it possible to edit shared calendars in Outlook 2016 for Windows.

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

To learn more about how to share feedback, see How do I give feedback on Microsoft Office. Another options is to use the Filter Email button on the ribbon. Please install the Windows 10 Fall Creators Update to fix this issue.

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.



Switch your alias to an Outlook.com or Hotmail.com account. In addition, you can export directly into Office 365 mailboxes after recovery with no middle step required. Save the repaired file to PST, MSG, EML, PDF, HTML or export directly to Office 365. Select the corrupted PST or OST using the file picker. This tool has helped IT teams across healthcare, finance, education amongst many others. Whether it’s restoring email from encrypted backups or recovering badly broken PSTs, Stellar gets the job done with minimal fuss.

Outlook known issues in the Nov 2017 updates

Sometimes, issues can be caused due to a corrupt Outlook OST file. To repair corrupt OST file, you can use the built-in ScanPST.exe tool provided by Microsoft. Alternatively, you can delete or rename the existing corrupt OST file and rebuild the OST file. The colleagues at Bleeping Computer noticed this update and addressed Fix Outlook and Office365 Sync Issues it in this post. This post also mentions the downgrade to an earlier Microsoft 365 build, which was previously described as a workaround.

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.

• If you manually type in the secondary connected account email address in the "From" field, the email is sent as "On behalf of" your primary Outlook.com account.
• 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.
• The folder may have been deleted or the server where the folder is stored may be unavailable.
• Please install the Windows 10 Fall Creators Update to fix this issue.
• When this registry key is set, Outlook will use its own built-in search engine.
• MAPI does not validate that a provider's DLL that it is requested to load is registered correctly in MapiSVC.inf or even that it comes from the local machine.
• The app might refuse to launch or crash at the splash screen.

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, Fix Outlook and Office 365 Errors 2025 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.

Outlook Known issues in March 2023 updates

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 expert Outlook tips by FixTechGuide for Windows 10, or use a mobile device.

Let’s see how to fix Outlook connection problems in Microsoft 365 accounts. The file react-native-win32.dll was reported as not found in the specified path, even though the file exists. Robert suspected that it might be related to an Edge update, and replacing the .dll with an older version or downgrading Microsoft 365 to an older build fixed the problem.