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How-to-troubleshoot-performance-issues-in-Outlook.md

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+A damaged or corrupted Outlook user profile is a common reason for "Outlook won’t open" errors. Creating a fresh profile can provide a clean slate for Outlook to start. Outlook stores all your email messages, meetings and events, contacts, and tasks in data files. You can run the Inbox Repair Tool (scanpst.exe) to scan your Outlook data files and repair errors.
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+Pressing Alt+Tab will help you switch from window to window and help you see what dialog boxes might be stopping Outlook from easy fixes for Outlook errors responding. These troubleshooting techniques apply to Outlook 2016 and 2011 for Mac. The navigation pane, which typically displays your Inbox, Sent Items, and other folders on the left sidebar, can sometimes become corrupted. A simple reset often resolves this and allows Outlook to open correctly. Sometimes, extra tools, ‘add-ins’ in Outlook, can make things tricky. They’re like helpful accessories, but sometimes they can cause trouble.
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+When you add someone as a favorite in People, they'll also show up under Favorites in Mail, and the other way around, provided that the contact has an email address. Use the People page to find, view, create, and edit contacts and contact lists. To learn more about managing contacts in Outlook.com, go to Create, view, and edit contacts [easy fixes for Outlook errors](https://fixoutlookhelp.wordpress.com/2025/10/29/repair-outlook-ost-and-pst-files-2025-guide/) and contact lists in Outlook.com. When you select a specific day in the calendar, any appointment or event scheduled for that day is listed in this area. You also can select a day or time slot and create a new appointment or event.
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+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.
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+A good Antivirus program has no compatibility issues with Microsoft Office applications. While these Microsoft accounts work in other Microsoft products (e.g. OneDrive, Windows, Xbox), they are non-functional when visiting Outlook.com. Outlook.com (the web version of Outlook) and Outlook apps require a 1st party alias (Outlook/Hotmail/Live/MSN) to send and receive email, use calendar, etc. This kind of error usually indicates some issues on the disk where your Outlook PST file is located.
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+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 easy fixes for Outlook errors 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.
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+Use the classic Outlook for Windows connectivity troubleshooter to troubleshoot Outlook connectivity issues. Post questions, follow discussions and share your knowledge in the Outlook.com Community. Switch your alias to an Outlook.com or Hotmail.com account.
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+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 easy fixes for Outlook errors Remove. For more information, see Introduction to Outlook Data Files (.pst and .ost).
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+In the Search box, type the name or email address of a person or a keyword you want to search for, and press Enter or select . See Working with message folders in Outlook.com to learn more about available folders. Having trouble connecting to your email from Outlook on your desktop? Follow these steps to let Outlook diagnose and fix errors in your Outlook mail profile that might be causing the issue. We love reading your suggestions on new features and feedback about how you use our products!
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+It is a powerful and almighty software that can be applied to fix corrupt Outlook easy fixes for Outlook errors PST files in any scenarios. I just have the hourglass that disappears after a minute. After multiple restarts the program will open one time, then reverts. There are other issues, too, that can contribute. Maybe you've added a new program to your computer that doesn't get along with Outlook, or your system has a virus. Regardless of the specific cause, there are several key troubleshooting fixes to try that might help.
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+If so, wait a short time (usually two or three minutes) to see if Outlook starts working again. If the above solutions do not work for you, maybe you should fix the Outlook error by disabling Outlook add-ins. Sometimes the unexpected issue "Outlook not responding" may occur due to a faulty Outlook add-in. If you have recently installed some add-ins, it is recommended to disable them one by one and perform the action whatever you were doing before.