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 troubleshooting Outlook startup issues 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.

Additionally, you can try the free trial tool to learn all about its functionalities and workings as well. Nevertheless, you cannot save the recovered data when using the demo tool. For that, purchase the premium version of the software. After the restart, try opening Outlook again to see if the Outlook keeps shutting down issue is resolved. 5) Wait for the program to detect the latest version troubleshooting Outlook startup issues of Outlook, and then follow the on-screen instructions to update your Outlook. Some programs running on the back of your computer may conflict with Outlook and cause Outlook to crash.

I recently uninstalled and reinstalled Office but it only made the issue worse. To create a user profile, you must first create a user account. When the new account is created, a profile is also created. To determine whether this problem is caused by a corrupted user profile, create a user profile to see whether the problem still occurs when you use the new profile. To keep up with new viruses as they're created, antivirus software vendors periodically provide updates that you can download from the Internet.

You must have at least three user accounts on the computer to complete these steps. You may have to contact your antivirus software vendor to determine how to configure the software to exclude any integration with Outlook or to exclude scanning in Outlook. For a list of antivirus software vendors, see Consumer antivirus software providers for Windows.

Warning This workaround may make a computer or a network more vulnerable to attack by malicious users or by malicious software such as viruses. We do not recommend this workaround but are providing this information so that you can implement this workaround at your own discretion. Use this workaround at your own risk.If your antivirus troubleshooting Outlook startup issues software includes integration with Outlook, you may experience performance issues in Outlook. In this case, you can disable all Outlook integration within the antivirus software. Or, you can disable any antivirus software add-ins that are installed in Outlook.

Support and Recovery Assistant performs diagnostic checks and returns potential solutions for you to try in order to resolve Outlook issues. This should resolve the issue of ‘Outlook keeps crashing’. If not, you can try reinstalling Office 365 or repairing it.

To repair troubleshooting Outlook startup issues such PST files, you need to use Stellar Repair for Outlook, an advanced Outlook PST repair tool. This tool can repair damaged, inaccessible, and encrypted PST files with complete integrity and precision, regardless of the file size or the degree of corruption. The tool creates a backup of the original PST file (.bak extension) and then tries to repair the original PST file. The time taken by it to repair depends on the level of corruption, inconsistencies, or errors, and size of the mailbox.

Let us know how it will assist you in repairing your files. Most businesses and organizations rely on Outlook for daily communication and scheduling. This issue can disrupt your workflow and lead to data loss if not addressed promptly. Therefore, to help you out with this issue, here is a comprehensive guide with some effective troubleshooting solutions.

In the meantime, please use the workarounds suggested for each issue. 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. This occurs because custom form script is now disabled by default. To determine the cause of the performance issues, start the Assistant, and run the Outlook Diagnostic in the Advanced Diagnostics section. Serious problems might occur if you modify the registry incorrectly.

After updating Office, you may experience a brief flashing window every hour, which triggers the OfficeBackgroundHandlerRegistration task to start running. In this case, sign in to the Microsoft 365 portal by using your administrator credentials, and then select service health to determine whether other customers are experiencing the same issue. If other customers are experiencing the issue, the issue should end when the service-interrupting event is resolved. If you’d like to share any feedback about this article, please let us know.