Please install the Windows 10 Fall Creators Update to fix this issue. Outlook 2016 freezes when you try to preview an Excel file that's attached to an email. We're investigating the issue and will update this page when a fix is available.

You don't have appropriate permission to perform this operation. Outlook 2016 freezes when you try to preview an Excel file that's attached to an email. This issue affects all Outlook versions on Windows 7, Windows 8, Windows 10. After installing the September Public Update, Outlook 2007 displays ways to fix Outlook data file errors mixed languages in the user interface. We have multiple tools to help you automatically diagnose an issue, troubleshoot, and fix problems with Outlook.

The good news is that most "Outlook won’t open" errors can be resolved with a few proven troubleshooting steps. When you install Office, an Inbox Repair Tool (SCANSPST.EXE) is also installed on your PC. The Inbox Repair Tool can resolve issues by scanning your Outlook data files and repairing errors.

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. 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. 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.

We are aware that some users may not be able to receive email from Gmail accounts. If you access your Outlook.com account through the iOS Mail app, you may be repeatedly asked to enter your username and password. This fix will also lead to a reduction in the total number of contacts on your contact list.

Some users may not be able to empty their Deleted Items folder. We will update this article as soon as we have more information on a fix. Some Safari users are unable to add email addresses in the To section, or cannot point the cursor in the To field.

Microsoft has released a Windows Hotfix file to remove the contacts folder ways to fix Outlook data file errors synced by the Teams app. This fix will also lead to a reduction in the total number of contacts on your contact list. We will ensure that all information is retained and only contacts with matching information in all fields will be cleaned up.

Moreover, you can make Outlook work much better and faster. Don’t forget to regularly take care of your Outlook and update it to keep it working its best. If you still have problems even after trying these solutions, it might be a good idea to ask for help from Microsoft Support or an IT expert.

If the network is performing slowly, Outlook must wait for read and write operations to the AppData directory to finish. We recommend that you move several items in your larger folders to separate folders, or that you archive those items by using the AutoArchive feature. Make sure that the latest updates for Outlook are installed. For more information, see How ways to fix Outlook data file errors to install the latest applicable updates for Microsoft Outlook (US English only). For more information, see Support for Office 2016 and 2019 clients connecting to Microsoft 365 services has ended. Running the /resetnavpane command removes all customizations to the navigation pane.

For more information on creating a new email profile, see Create an Outlook profile. To start Outlook in safe mode, press the Windows key on your keyboard. In the search box, type outlook.exe /safe, then press Enter. Repairing is a simple process but may take as long as half an hour to complete.

Solutions to Troubleshoot 'Out of Memory or System Resources' ErrorCheck Resource Usage. ...Restart and Update Outlook. ...Optimize System Resources for Outlook. ...Find and Remove Faulty Add-ins from Outlook. ...Increase the Size of the Memory Heap. ...Rebuild the OST File.Apr 7, 2025

To edit a shared calendar, go online to your own Outlook.com calendar, open Calendar for Windows 10, or use a mobile device. Read how to Add your Outlook.com account to another mail app. We are aware that some users may not be able to receive email from Gmail accounts.

I want it to open automatically whenever I open my laptop. Occasionally, classic Outlook tries to run a process in the background. Auto-archive, sending and receiving a very large attachment, or running some of the other mailbox tools can all be done in the background. Check the status bar at the bottom of the screen to see if another process is running.

As your mailbox size increases, more resources are required to open each folder. If you have a large number of items in any single folder, you may experience performance issues during certain operations. For more information, see Outlook performance issues when there are too many items or folders in a cached mode .ost or .pst file. Follow these methods to resolve the Outlook stuck on loading profile issue. If your antivirus software includes integration with Outlook, you may ways to fix Outlook data file errors experience performance issues. You can disable all Outlook integration within the antivirus software.