When this registry key is set, Outlook will use its own built-in search engine. The built-in search will display the message below to indicate it is not using the Windows Search service. Microsoft has its own tool for automatically scanning and correcting Office when things go awry. You can read about it and then run the Microsoft Support and Recovery Assistant to see if that helps. It can automatically diagnose issues, troubleshoot, and fix problems with Outlook.
If that block was part of a specific item in Outlook, the item will be removed when it is validated. The Inbox Repair tool is automatically installed with all English-language Microsoft Outlook installation options depending on your operating system. For instructions about how to unhide files and folders, see your operating system documentation. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. If everything goes correctly, you’ll get the Repair complete dialog after some time.
Turn off all the add-ins, close Outlook, and reopen it (not in Safe Mode). If it opens correctly, you can enable the add-ins one by one. After turning on each one, close and reopen Outlook to see if it loads correctly. It will help pinpoint the Outlook not opening on Windows 10 troublesome add-in you can remove or replace.
If you have Outlook in your startup folder, remove the shortcut from the startup folder. To learn more about how to share your feedback, see How do I give feedback on Microsoft Office. Some users may not be able to empty their Deleted Items folder. While we fix the problem, Outlook not opening on Windows 10 you can send the file as a OneDrive link. We have multiple tools to help you automatically diagnose an issue, troubleshoot, and fix problems with Outlook.
One such issue is when you are stuck on loading your Outlook profile and the set of folders cannot be Outlook not opening on Windows 10 opened. It’s too frustrating because you can’t even use the app and find out what’s wrong with it. While doing your work on Outlook stuck on loading profile? It’s a common error encountered by most MS Outlook users.
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.
If your Outlook crashes when opening Outlook not opening on Windows 10 or on startup or even if Outlook stucks at Processing, you can fix it by opening Outlook in Safe Mode. To open Outlook in Safe Mode, follow the instructions below. You can determine if it's corrupted by creating a new profile and changing which profile is used when Outlook starts. If Outlook is NOT able to start in safe mode, then try the next proposed solution below, entitled Create a new Outlook profile. Then, each item in your calendar folder is checked for known problems that can cause unexpected behavior, such as meetings that seem to be missing.
After October 14, 2025, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows 10. Your PC will still work, Outlook not opening on Windows 10 but we recommend moving to Windows 11.
The software provides options to split the resultant PST file. You can set the size for the PST file, and the software will split it after recovery. On June 25th, 2019, the Outlook Team made a change to the service to fix this issue. If you are still seeing this issue, restart Outlook a couple of times so it can pick up the service change. This software also allows to recover Lost Attachments Edited from Outlook.
If your account is affected, be sure to secure your account and update your recovery information. "I had a large PST file that was causing Outlook to crash. Cigati handled it like a breeze. The software is user-friendly and provides clear instructions. I'm so glad I found this tool." If your Microsoft account recovery request wasn't granted, you can keep trying as many times as you want, up to two times per day.
To learn more about how to send us feedback, please see How do I give feedback on Microsoft Office. Another options is to use the Filter Email button on the ribbon. You may notice that All, Unread , Mentioned and other sort and filtering options, such as By date, and Newest are missing in Outlook above your email list. The loading of unregistered MAPI services has been Outlook not opening on Windows 10 disabled by default to make Outlook more secure. This occurs because custom form script is now disabled by default.