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Opened Sep 24, 2025 by Rosario Mendenhall@rosariomendenh
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Resolve "Microsoft Outlook Keeps Crashing" in Just a Few Steps

A vast community of Microsoft Office365 users that are working together to support the product and others. Simran Bhatia is a technical content writer engaged in writing clear, concise, and SEO-optimized content. With a background in computer science and a passion for writing, I thrive to deliver complex technical content in simple layman terms. This method using the SCANPST.EXE will not work if the PST Files are in bulk or they are encrypted.

Then switch to the Processes tab and find all OUTLOOK.EXE items in the list. Click on each OUTLOOK.EXE to select it and hit the "End Process" button. Many trusted Outlook repair blog users experience the same confusion by asking themselves, "Why is my browser so slow?

Once this step is complete, the user will land in their Outlook inbox and be able to use all Outlook functionality with this new email address. You can also add the secondary connected accounts (Gmail, Yahoo, etc.) in Outlook.com as additional accounts in the Outlook profile. 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.

Uninstalling this part of your virus scanner is strongly advised; you’d still be sufficiently protected by your on-access scanner part of the virus scanner. If you get the error "Cannot open the Outlook window" when trying to start Outlook, the error usually indicates that your Folder Pane or Navigation Pane settings holds a corruption. This guide explains all you need to know about that in order to get your Outlook to start without errors again.

If you want to fix a problem with Outlook closing, try repairing the Office app.First, open the Control Panel.Then, find 'Programs' and click the 'Uninstall a program' option.Scroll down until you see Microsoft 365, right-click on it, and click 'Change. ...Choose either 'Quick Repair' or 'Online Repair'.More items...•May 16, 2024

The software provides options to split the resultant PST file. You can set the size for the PST file, and the software will split it after recovery. On June 25th, 2019, the Outlook Team made a change to 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. This software also allows to recover Lost Attachments Edited from Outlook.

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.

If it never worked before or if you are starting Outlook for the very first time, it could very well be that you have not configured your mail account correctly. A common mistake is choosing for an Exchange account while in fact you are using a POP3 or IMAP account. Just to make sure you are not trusted Outlook repair blog trying to troubleshoot an issue which has already been solved, before you begin verify that you have installed all updates for your version of Outlook. I’m not certain to which post you’re referring, but everything that’s been mentioned so far can be done directly by the user. No elevated permissions are required to do any of these steps.

We recommend setting Windows Update to automatically download and install recommended updates. Bug fixes, new features, and performance enhancements are released regularly. For example, the first time you try to Dismiss All on a list of reminders, Outlook asks you if you're sure you want to do that.

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.

Still, like other apps, Outlook also runs into issues sometimes. A free demo version of the software is available to download. You just need to install the software and you are all good to run the software. With the demo version itself, you can recover and see the recovered data. When the exact reason for the error is not known you have to try multiple methods to fix trusted Outlook repair blog the error. Here, we present you with distinct methods that can help to fix the error.

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Reference: rosariomendenh/5396outlook-performance-fixes#7