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  • Ruth Wilt
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Opened Sep 24, 2025 by Ruth Wilt@ruthwilt71567
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Fixes or workarounds for recent issues in classic Outlook for Windows

It would get stuck at 82% and then she would turn it off. For awhile, when she did this, the system would try a system recovery installation and was successful until now. The navigation pane is the leftmost pane in Outlook where you'll find your folder list and the icons to move between Mail, Calendar, People, and Tasks. Running the /resetnavpane command removes all customizations to the navigation pane. Starting Outlook in safe mode, which starts Outlook without add-ins loaded, can tell you if an add-in how to stop Outlook freezing is the source of the problem. If the troubleshooter can't fix your issue, or if you'd like to fix it yourself, see the next section.

Specifically around FSLogix (which we use) and a known issue. We’re going to add the registry setting to roam the paths listed in the known issue and re-register appx and see how we go. There are also notes about legacy per-user auth being an issue, however we had two accounts left in per-user auth but none with the issue. If you think that it is patch related, roll back the patch and see if that fixes it for the end users.

The only thing is to know how to overcome them when they arise. Whether it's defective add-ins, frozen Outlook, faulty data files, and many others, you can manage all these problems yourself. Knowing the cause of the problem will help you sort out all the issues related to Outlook opening. Should you decide to remove a profile, back up the data files first. All offline cached content will be deleted when you choose how to stop Outlook freezing Remove. For more information, see Introduction to Outlook Data Files (.pst and .ost).

Newer Windows updates and builds like Windows 10/11 provide better compatibility with Outlook 2019 and Outlook 365. If your Outlook keeps freezing, despite all your effort, it’s time to bring in the professionals. If your internet is slow or spotty, Outlook might struggle to sync data.

No action needs to be taken for the fix to be applied. 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 how to stop Outlook freezing 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.

Start Outlook in safe mode to fix "Processing" screenIn Windows 10, choose Start, type Outlook.exe /safe, and press Enter.In Windows 7, choose Start, and in the Search programs and files box, type Outlook /safe, and then press Enter.In Windows 8, on the Apps menu, choose Run, type Outlook /safe, and then choose OK.

If the problem doesn't occur after you restart Outlook, one of the add-ins is likely the cause of the problem. Restore the add-ins one at a time until the problem does occur to determine which add-in is causing the problem. Although add-ins can enhance your user experience, they can occasionally interfere or conflict with Outlook. Try to start Outlook without any add-ins running.

You can run the Inbox Repair Tool (scanpst.exe) to scan your Outlook data files and repair errors. Are you having trouble starting Outlook or receiving "Cannot start Microsoft Outlook. Cannot open the Outlook window" error messages? We can fix the problem for you, or you can use the troubleshooting steps we're providing below to help resolve these startup issues. If your Outlook is working fine now, it means add-ins are the culprit. But it is important to identify the specific add-in that was causing trouble. To identify that, check the add-ins one at a time and restart Outlook.

With the window with the Windows Update, you will see all the updates you need to make for your Microsoft how to stop Outlook freezing Office. If you are figuring out how to fix "Outlook Not Opening," you will find several possible solutions. The best part is that you are spoiled for choice because some are quick to implement while others are time-consuming.

We have gone through many steps with Microsoft Support until they could help no further. We have tried to trouble shoot and done a system restore but there was no restore point how to stop Outlook freezing and a startup repair and nothing worked. When we performed a startup repair this is the message we received. Outlook stores all your email messages, meetings and events, contacts, and tasks in data files.

Wondering how to fix the Outlook Crashes During Startup error? Don’t worry, in this article we have explained 6 useful methods which will help you to fix this issue. Also, find out how you can repair your corrupted 0utlook data file using effective software like Remo Repair Outlook. If none of the above solutions help you resolve the Outlook crashing error, it means that your Outlook data file has been corrupted. This is caused when the program tries to access the storage file but fails to do so. However, frequent Outlook crashes also result in corruption making your Outlook inaccessible.

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Reference: ruthwilt71567/1618423#9