Thus, the only way to effective operation is to have this updated. Check your Outlook on Mac and see if it requires any major update that halts its operations. The issues with your Outlook on Mac are not a Official Fix Outlook guide result of anything complex. The problems related to this issue can be as simple as an outdated macOS.

Or, if the problem is itself due to oversized PST getting corrupt, you need to recover PST data as soon as possible. Let us switch to professional suggested software. 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 Official Fix Outlook guide with some effective troubleshooting solutions.

ProcedureExit Outlook.Open a Run dialog box. ...Type Outlook /safe, and then click OK.If the issue is fixed, click Options on the File menu, and then click Add-Ins.Select COM Add-ins, and then click Go.Click to clear all the check boxes in the list, and then click OK.Restart Outlook.Jun 25, 2025

We can teach you how to repair a corrupted file, but to prevent it from happening to other files, we recommend investigating the root cause of the corruption. In that case, you may need to take harsh steps to remove it, as leaving it unattended can harm system files and exploit sensitive information. If you’ve tried everything and Outlook still isn’t working, it might be time to use a trusted and automated Outlook data file repair tool. You can create a new Outlook Data File and drag the items in the Lost and Found folder into the new data file. After you've moved all the items, you can remove the Recovered Personal Folders (.pst) file, including the Lost and Found folder.

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.

Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. We love reading your suggestions on new features and feedback about how you use our products! To learn more about how to share your feedback, see How do I give feedback on Microsoft Office. Set up your account manually as an IMAP or POP account in Outlook.

Generally, many programs and applications run simultaneously or in the background which can cause interruptions. Therefore, first, restart your system, and second, check the internet connection. Follow the given ways along with their steps to fix the error and access your files. 6) Open the downloaded file and follow the on-screen instructions to install Office 365 again. You can follow some troubleshooting steps to fix this Outlook crash.

If not, you can try reinstalling Office 365 or repairing it. To sum up, the blog elaborated on all the major reasons for Microsoft Outlook keeps crashing problem. Furthermore, we learned six manual solutions to fix this issue. So, for a worry-free and risk-free conversion, using the professional tool is the optimum choice. I disabled all add-ins and started Outlook in safe mode but the crashing problem continued.

If this does not resolve the Outlook 365 crash issue, proceed to the next solution. Priyanka Kumari is a technical content writer in the fields of Email Migration, Data Recovery, Cloud Migration, and File Management. She is dedicated to simplifying complex technology terminologies for all users. Her articles and guides demonstrate her commitment to streamlining email management for professionals or businesses of any size.

The built-in back-off mechanisms in the indexing Official Fix Outlook guide component of Windows Search or WDS pauses the indexing of Outlook data when the system is under heavy use. The easiest way to let the indexing finish is to leave Outlook running overnight.Additionally, you can reduce performance issues by running Outlook in Cached Exchange Mode. In this mode, Windows Search or WDS searches the local copy of the mailbox instead of the mailbox content on the server.

This issue has been mitigated and we are continuing to monitor the issue to ensure stability. The root cause was the deployment of an incorrect campaign data file, which led to false positive campaign detection. We have since reverted to the right data file and the outbound email flow has returned to a normal state. We also released a new rule that corrected the wrong campaign verdict for all impacted customers during the incident.

This can be done by repairing the file from the root levels. According to Microsoft, the Inbox Repair tool doesn't connect to or analyze data stored in an Exchange mailbox. It only looks for errors (corruption) and, if there are any, permits those tools to fix them.