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  • #18

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Opened Jan 17, 2026 by Nereida Beall@nereidaf784539
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Outlook help & learning

This software is integrated with powerful scanning and repair algorithms that can easily resolve all Outlook email errors and repair personal folder file non-invasively and efficiently. Moreover, the utility supports the all latest Outlook versions such as 2021, 2019, 2016, 2013, 2010, 2007, and all lower versions in Windows OS. If you manually type in the steps to fix Outlook not opening secondary connected account email address in the "From" field, the email is sent as "On behalf of" your primary Outlook.com account.

Give Outlook a few minutes to finish the process and it should start to steps to fix Outlook not opening work again. If Outlook isn't stuck at a screen that says "Processing," or this didn't resolve your issue, continue to the steps below. If those steps don't work, see Need additional help?

If you're tired of different bugs slowing things down or dealing with corrupted files, we are happy to show you how Mailbird can give you a better experience. The bad news is that the ScanPST.exe program doesn't work for severely corrupted files. You'll need to acquire a recovery tool designed for bigger jobs. Search "PST Repair Tool" and you'll find many reputable programs who know how to fix this Outlook issue.

This issue has been mitigated and we are continuing to monitor the issue to ensure stability. The root cause was the deployment of an incorrect campaign data file, which led to false positive campaign detection. We have since reverted to the right data file and the outbound email flow has returned to a normal state. We also released a new rule that corrected the wrong campaign verdict for all impacted customers during the incident.

To do this, start up the Windows Task Manager either by pressing Ctrl + Alt + Del, or by right clicking the taskbar and choosing "Start Task Manager". Then switch to the Processes tab and find all OUTLOOK.EXE items in the list. Click on each OUTLOOK.EXE to select it steps to fix Outlook not opening and hit the "End Process" button. To create a user profile, you must first create a user account. When the new account is created, a profile is also created.

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 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 steps to fix Outlook not opening 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.

Customers with only a 3rd party email address set up as the username of their Microsoft Account will be asked to add a 1st party Microsoft alias to their account before accessing Outlook.com. You can create a new steps to fix Outlook not opening 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. To create a new Outlook Data File, go to Create an Outlook Data File.

Occasionally, classic Outlook tries to run a process in the background. Auto-archive, sending and receiving a very large attachment, or running some of the other mailbox tools can all be done in the background. Check the status bar at the bottom of the screen to see if another process is running.

Availability has recovered, and engineers are investigating the root cause and identifying problematic servers. The team is sweeping all remaining capacity to identify and address residual issues. Customers with only a 3rd party email address set up as the username of their Microsoft Account will be asked to steps to fix Outlook not opening add a 1st party Microsoft alias to their account before accessing Outlook.com.

These Outlook data (PST) files store user’s data, including email messages, calendars, tasks, journals, etc. By following these steps, you should be able to resolve the ‘Something is wrong with your data files’ error. Also, regain access to your email account and mailbox data. Once your task is done of locating the ScanPST.exe tool, kindly head to follow the below-given steps to fix Outlook data files (PST).

While we fix the problem, you can send the file as a OneDrive link. When users select the Manage Microsoft Storage quota link at the bottom corner in Outlook.com, they are taken to a blank Settings page. If you can't open Outlook, or Outlook disappears or crashes, one of your add-ins may be to blame or you may need to update Outlook. You can check the location of your Outlook Data Files in Outlook. Gmail has a positive reputation when it comes to spam filtering.

Installing any important, recommended, and optional updates can often correct problems by replacing out-of-date files and fixing vulnerabilities. To install the latest Windows and Office updates, click the link below. Please install the latest updates on your phone to resolve the issue. Outlook forwards meeting invitations to other attendees without anyone actually sending an update or forwarding an invite. This happens to accounts that are configured in the iOS Mail app. 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.

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Reference: nereidaf784539/3019700#18