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Opened Sep 18, 2025 by Mitzi Huggard@mitzihuggard55
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Top Common Outlook Problems and How to Fix Them

For more information, see Outlook performance issues when there are too many items or folders in a cached mode .ost or .pst file. 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. Resolving Outlook’s "Loading Profile" hang involves a mix of system checks, process management, and profile or data file repair. Applying these targeted steps gets Outlook running smoothly and restores access to your mailbox.

Once the PST file is repaired, you can import the repaired PST file into a new or existing Outlook profile to restore and access all mail items. In the Folder Pane, you might see a folder named Recovered Personal Folders that contains your default Outlook folders or a Lost and Found folder. Although the repair process might recreate some of the folders, they may be empty. The Lost and Found folder contains any folders and items recovered by the how to stop Outlook freezing repair tool that Outlook can't place in their original structure. Moreover, this tool can quickly recover email messages, calendars, tasks and other data from corrupted PST files. It also offers a filter option; users can filter items using different criteria when they want to have only the desired items to process.

To check if you have received the fix, review your contact list to confirm duplicates have been removed. To help you get rid of these duplicates, we have released a fix which will automatically clean up your contact list. This fix will clean up duplicate contacts for end users starting August 9, 2023. Rollout of the fix to all users will take few weeks, so, some users may see the fix applied by the end of September.

If Outlook is configured to connect to the Exchange mailbox in Online mode, an .ost file is not used. To adjust the number of days of data that are synced for shared folders, add the following registry values. You can limit the synchronization window that’s used for calendar folders to reduce the number of items that are stored locally in your calendar folders.

An actual online repair will take a little longer, unpins office apps from the taskbar, and updates if there is an update available (which there is for these devices). This repair is happening quicker, is not unpinning and is not updating. I verified by manually doing an online repair on one device and it did everything it should have. If you’re experiencing any issues with Outlook on your Windows 10 system, there’s no need to how to stop Outlook freezing panic. The first thing you should try is to fix the basic Outlook issues.

Along with that, it will be helpful to keep your folder structure safe. In addition to that, it is usually easy to use, even if you’re not a tech-savvy person. This free application can quickly detect and fix issues with Outlook, Microsoft Office, Microsoft 365, and Microsoft Teams. Whether your Outlook is unresponsive or frequently crashes, this program can help you how to stop Outlook freezing troubleshoot and fix the root cause of the problem with ease.

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.

This fix will clean up duplicate contacts for end users starting August 9, 2023. Rollout of the fix to all users will take few weeks, so, some users may see the fix applied by the end of September. If you're curious to get started, we recommend downloading how to stop Outlook freezing our free trial. Our support team is available to chat with you about how to effortlessly transfer your Outlook to Mailbird any time. We can say that you will likely need to reinstall your software and reconfigure the firewall settings. Often there is the option to add sites to a whitelist, and you can give more permissions to Outlook.

If you want to fix PST files using this tool, make sure to have a proper backup of the Outlook PST before processing. You can use the Inbox Repair tool (SCANPST.EXE) to diagnose and repair errors in your Outlook data file. The Inbox Repair tool checks the Outlook data files on your computer to see if they're in good shape. If you can't start the Inbox Repair tool automatically or manually, you may try to repair your Office application. If you do not see the files in the default locations above, you can use Outlook to identify the file location. When you are online, Outlook synchronizes the data in the OST file with the how to stop Outlook freezing Exchange Server, ensuring that you have the most up-to-date information.

Ending these processes forces Outlook to start cleanly. To keep up with new viruses as they're created, antivirus software vendors periodically provide updates that you can download from the Internet. Download the latest updates by visiting your antivirus software vendor's website. If repairing your how to stop Outlook freezing Microsoft 365 programs didn't resolve your issue, move on to the next step. If installing the latest updates didn't resolve your issue, move on to the next step.

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Reference: mitzihuggard55/mitchel1990#1