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. 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. You can use step-by-step Outlook troubleshooting Microsoft Support and Recovery Assistant to diagnose both Calendar and Mail issues that affect Outlook. To download and install the Assistant, see About Microsoft Support and Recovery Assistant. In some cases, an Outlook messaging profile may be misconfigured.

Most of these crashes come down to one thing – problematic data files. PSTs and OSTs act like Outlook’s memory banks. When they get too large, go corrupt, or are poorly configured, step-by-step Outlook troubleshooting things start to break. This should resolve the issue of ‘Outlook keeps crashing’.

These issues might occur if a mailbox contains lots of folders or there are lots of items in any one folder. There's no hard limit to how many folders a mailbox can contain or how many items a folder can contain. However, you might experience decreased performance as the number of items approaches 10,000 calendar items, 10,000 folders, or 100,000 mail items per folder. Large numbers of recurring meetings or long-lived recurring meetings can also have an exaggerated effect on performance. One-time meetings have a relatively small effect, and long-lived, recurring meetings have a greater effect. A change that's made in an instance of a recurring meeting creates exceptions that are stored in the recurring meeting series.

Creating a step-by-step Outlook troubleshooting new Outlook profile may resolve some performance issues. Items moved into new folders will still be located when searching a mailbox. Outlook forwards meeting invitations to other attendees without anyone actually sending an update or forwarding an invite.

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. The issues documented in this section have been reported after installing the recent updates listed below. We're investigating the issues and will update this page when a fix is available.

Many users frequently report issues with Microsoft Outlook crashing, regardless of whether the installation is new or old. One common issue with Outlook is that it occasionally closes unexpectedly. Running the latest version of Outlook ensures you have step-by-step Outlook troubleshooting the most recent fixes and updates.

The first step is to check whether the PST file exists in its original location. You can also download the trial tool to try and test the working of the tool before buying the premium edition. If your PST file is stored on a network drive, ensure that the drive is accessible and that you have the necessary permissions. Reconnect to the network or contact your system administrator for assistance.

Now, let us move into the solutions to fix the issue of MS Outlook. Position your company at the center of the tech conversation with spotlight articles, executive interviews, and monthly roundup opportunities. Connect with key decision‑makers, build trust, and expand your brand’s authority across the B2B tech space. Save the repaired file to PST, MSG, EML, PDF, HTML or export directly to Office 365. This should get you back to business promptly. Select the corrupted PST or OST using the file picker.

Find solutions to common problems or get help from a support agent. Ask a question and find solutions from Support Agents, MVPs, Engineers, and Outlook users. On June 25th, 2019, the Outlook Team made a change to step-by-step Outlook troubleshooting the service to fix this issue. If you are still seeing this issue, restart Outlook a couple of times so it can pick up the service change. Remember to re-enable your antivirus once Outlook is working properly.

To reduce the number of items that are stored locally, limit the synchronization window that's used for shared folders. These keys don't clean up older Calendar content that was already downloaded. However, this method can be effective if you're willing to clear offline items and resync your Calendar (instead of bulk deleting old items). If you already have the Calendar in the profile, you have to clear the Offline Items after you set the registry keys and restart Outlook. In Sync Window Settings, adjust the number of months of data that are synced for the primary shared calendars. Use the Turn on shared calendar improvements option for users who have edit permissions to a shared calendar to improve performance.

Have also login in another computer with this account but there is also coming the dialog with the message. My question is, how can I see what document is Outlook referring to? In Outlook thru Office.com, the account has no issue.