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on January 15, 2026
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We have also mentioned some tips on how to further troubleshoot and fix the issues with Outlook. If you want to rebuild the Outlook profile using Command Line for quick actions or scripting, you can rebuild Outlook profile using Windows Registry Editor and Outlook Command Line. While Outlook doesn’t provide commands to delete and recreate Outlook profiles, you can automate the process of resetting and launching one.
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It is vital for users to be aware of the reasons why Outlook profiles need to be rebuilt or repaired before jumping into the steps. So, read how to fix Outlook not opening today the points below and learn common reasons behind damaging an Outlook profile. Windows Outlook uses a profile managed on the Control Panel with PST/OST files. Mac Outlook stores settings in local databases and uses different paths and sync processes lacking the profile manager interface available in Windows.
How to Rebuild Outlook Profile? 4 Simple Methods
Follow the below-discussed steps based on your Outlook version to repair corrupt Outlook profile and resolve the errors. If repairing the main profile in Outlook doesn’t work or resolve the issues, try the following troubleshooting methods. You can scan your PST file, preview all mail items, evaluate the software, and then activate the software to save all recovered mail items to PST. 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.
Rebuild or Recreate Outlook Profile for Office 365 or Exchange Accounts
If a Microsoft 365 application diagnose Office activation conflicts such as Word or Excel isn't working correctly, sometimes restarting it will fix the problem. Once you have performed all the steps, restart Outlook to apply the changes. Karen Chard is the Editor-in-Chief of RecoveryTools content creation team. He’s been a content strategist and marketer for over 16 years and writes for Medium and many technology blogs. He is an avid technical analyst who simplifies technical topics for computer users. Connect and share knowledge within a single location that is structured and easy to search.
If a Microsoft 365 application such as Word or Excel isn't working correctly, sometimes restarting it will fix the problem.We have also mentioned some tips on how to further troubleshoot and fix the issues with Outlook.Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.This Outlook PST repair tool not only recovers data from damaged PST but also helps save the mailbox data in a quick and organized way to a new PST file, thereby reducing further chances of data loss.Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.If that won’t help, try the other troubleshooting methods and tips discussed in this post.
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If repairing the Outlook profile didn’t work, you can fix the problem by creating a new Outlook profile. If how to fix Outlook not opening today you can open the original Outlook Data File, you might be able to recover additional items. The Inbox Repair tool creates a backup file with the same name as the original, but with a .bak extension, and saves it in the same folder. There may be items in the backup file that you might be able to recover that the Inbox Repair tool couldn't. If you're using an Exchange email account, you can delete the offline Outlook Data File (.ost) and Outlook will recreate the offline Outlook Data File (.ost) the next time you open Outlook. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Locating the Outlook Data Files
When using this solution to recreate or rebuild an Outlook profile for an Office 365 or Exchange account, please make sure that Outlook and its related programs are closed. The steps to access the repair tool vary depending on your operating system. Follow these steps to let Outlook diagnose and fix errors in your Outlook mail profile that might be causing the issue.
Close Outlook then go to ~/Library/Group Containers/UBF8T346G9.Office/Outlook/Outlook 15 Profiles/ and delete and recreate Outlook profile on Mac. Restart Outlook and it will prompt you to create a fresh profile without any damaged data. Microsoft provides ScanPST.exe, also known as the Inbox Repair tool, to repair inconsistent or damaged PST files and resolve common errors.