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on December 6, 2025
If you are still seeing this issue, restart Outlook a couple of times so it can pick up the service change. All colleagues have a on-prem mailbox, just like myself. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. We recommend setting Windows Update to automatically download and install recommended updates.
Making a new PST file in Outlook and then importing the data from the old one is an additional manual technique. Click on the 'Browse' button to choose the damaged PST file. Then, press 'Start' to initiate the scanning of the PST file for any errors. Blog author is a reputed system administrator in a big IT organization. Having 10+ years of experience in different technologies including, Office Systems, Exchange Server, Mac Technology, and Open Source email server platform.
In this article, you will see various Microsoft Outlook error messages and solutions to fix them effortlessly. Most Microsoft Outlook issues occur due to PST file corruption. So the important question is steps to fix Outlook not opening how to fix Microsoft Outlook error in a simple and quick way without any data loss. You can also add the secondary connected accounts (Gmail, Yahoo, etc.) in Outlook.com as additional accounts in the Outlook profile.
Your user profile is a collection of settings that let you customize the computer appearance and performance. It contains settings for desktop backgrounds, screen savers, sound settings, and other features. User profiles help make sure that your personal steps to fix Outlook not opening preferences are used when you log on to Windows. If your antivirus software includes integration with Outlook, you may experience performance issues. You can disable all Outlook integration within the antivirus software. Or, you can disable any antivirus software add-ins that are installed in Outlook.
When it displays error messages, users start to get nervous. Hence, in this write-up, we have discussed the various Microsoft Outlook email error codes encountered by many users over a period of time. But sometimes Outlook users encounter the situation like when they try to send an email, the Outlook displays error messages or codes in pop-ups. In this case, it becomes necessary to deal with the root causes of Microsoft Outlook email error codes. Because Outlook errors may create trouble for users and affect the work.
Bug fixes, new features, and performance enhancements are released regularly. There are a number of possible reasons for Outlook to behave this way. We've presented the potential solutions in order steps to fix Outlook not opening from quickest to most time consuming. The team at Blackwood IT have always given us 5-star help. Use ScanPST.exe to scan and repair .pst or .ost files. Find solutions to common problems or get help from a support agent.
While working with Microsoft Outlook 2016, 2013, 2010, or any other previous edition, it is mandatory to run the Outlook appropriately while considering some important guidelines. Technical people fix this error based on possible reasons. It's a by-product of making more space on your PC, you delete things you don't think you need anymore.
We run a hybrid solution for our mailservers, some are still on prem and others already in the cloud. The mailbox was initialy an on-prem mailbox and then was moved to Microsoft 365. During this state, i am unable to remove it and i had to delete the old profile and create a new one to access my mails. We have recently seen a huge influx of people getting stuck on the blue outlook loading screen, with "loading profile" at the bottom.
This command launches Outlook with a fresh navigation panel, often resolving profile loading hangs. Large cache is often the cause of corruption, reduce the risks by reducing the size of the cache. For more information about performing a clean boot, see How to perform a clean boot in Windows. For steps to fix Outlook not opening a list of antivirus software vendors, see Consumer antivirus software providers for Windows. Outlook stores certain data, such as email signatures and the spelling checker dictionary, in the AppData folder.
If so, wait a short time (usually two or three minutes) to see if Outlook starts working again. Visit the small business help & learning page to learn how you can use Outlook and other Microsoft 365 apps and services in your small business. There is currently no option to revert steps to fix Outlook not opening to the prior behavior, but we would love to hear your feedback to help us with future designs. To learn more about how to send us feedback, please see How do I give feedback on Microsoft Office.
If Outlook is in use by another process, this information is displayed in the status bar at the bottom of the screen. If you try to perform other actions while Outlook is in use, Outlook may not respond. Let the task in process finish its job steps to fix Outlook not opening before you try another action. Performance may be decreased if you use the Outlook AutoArchive feature or sync to Outlook with a mobile device. These steps are provided in a specific order based on commonality and complexity.