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on February 2, 2026
Besides that, its free edition can process up to 50 items from each folder, making it easy for users to understand tool’s Outlook not opening on Windows 10 working. We have shared everything on the manual and professional ways to fix Outlook data files or Personal Storage Table (PST) in this blog. Also, we go over the stepwise working procedure of both solutions and the reasons behind PST file corruption issues. The Inbox Repair tool or ScanPST.exe is not a convenient way because of multiple restrictions. After you run the Inbox Repair tool, you can start Outlook and recover repaired items.
There can be instances that your Outlook profile is corrupted, recreate a new Outlook profile to resolve the issue. Here are some of the reliable methods to restore Outlook 365 not working issue. Follow these methods step-by-step to overcome the issue. Opening Outlook in Outlook not opening on Windows 10 safe mode means that the application will only open all the necessary files to start the applications.
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. If you're having problems sending or receiving email, read how to Fix Outlook.com email sync issues. Maybe you've added a new program to your computer that doesn't get along with Outlook, or your system has a virus.
Check the status bar at the bottom of the screen to see if another process is Outlook not opening on Windows 10 running. If so, wait a short time (usually two or three minutes) to see if Outlook starts working again. 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 might need to set Windows Update to automatically download and install recommended updates.
This issue occurs because Outlook cannot open the Forms Library. This issue can occur for Outlook on all Microsoft 365 Office channels. The emerging cases for this issue are on virtual desktop infrastructure (VDI). This is quite annoying and you’re certainly not alone. This should resolve the issue with Microsoft Outlook crashing.
The Inbox Repair tool checks the Outlook data files on your computer to see if they're in good shape. The last option in this list is to repair the Outlook data file. In Outlook not opening on Windows 10 this article, we will teach our readers how to repair outlook with proven methods.
In this guide, we will learn how to repair Outlook 365 in Windows 10/11 with the best possible ways. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
Whether you are a Microsoft Outlook, Exchange or Outlook not opening on Windows 10 Office 365 user, you may come across or encounter the PST files. These Outlook data (PST) files store user’s data, including email messages, calendars, tasks, journals, etc. However, if the SCANPST or Inbox Repair tool fails to repair the PST file, remember to use an advanced Outlook PST repair tool, such as Stellar Repair for Outlook. It can repair corrupt, inaccessible, or encrypted PST files of any size, with complete integrity. Remember that the backup file was the original corrupted file, and you may find that you cannot recover anything other than what was recovered in the Lost and Found folder. If you cannot import the Newname.pst file into Outlook, unfortunately you have lost all the information that is not in the Lost and Found folder.
The "Outlook is Running Slow" message can make you wonder why it’s not working well. But when we look into why this happens, we find various reasons that together make Outlook slow. We love reading your suggestions on new features and feedback about how you use our products! To learn more about how to share your feedback, see How do I give feedback on Microsoft Office. 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.
While Outlook’s built-in Inbox Repair tool (ScanPST.exe) can handle minor issues, it often falls short in cases of severe corruption or when dealing with orphaned OST files. In such situations, EdbMails OST to PST Converter provides a more comprehensive and reliable solution. To safeguard against data loss, maintaining regular backups of your OST files is highly recommended. EdbMails allows you to recover data from corrupted, damaged, or inaccessible OST files and supports direct import to Office 365 and live Exchange environments. It works seamlessly across all Windows and Outlook versions, preserving the original folder hierarchy and formatting throughout the recovery and migration process. To regain access to your data, repairing the corrupted OST file becomes essential.