To sum up, we explored several methods to fix “Outlook won’t open” errors. Whether it’s a profile issue, a corrupted PST file, or faulty add-ins, the methods above can help you get Outlook running again. When Microsoft Outlook refuses to open, it’s incredibly frustrating. This issue often stems from common culprits like a corrupted user profile, a damaged data file (PST or OST), or even a minor conflict within its settings or add-ins. The good news is that most “Outlook won’t open” errors can be resolved with a few proven troubleshooting steps.
To learn more about how to share feedback, see How do I give feedback on Microsoft Office. Right-click the folder, and then click Properties to check your permissions for the folder. See the folder owner or your administrator to change your permissions. To access the filtering options faster, add them to your Quick Access Toolbar. 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 disabled by default to make Outlook more secure.
If you manually type in the secondary connected account email address in the “From” field, the email is sent as “On behalf of” your primary Outlook.com account. If you typically use an Outlook.com account for email, this issue can occur if there are multiple aliases on the account and the 3rd party email address is the primary alias. While these Microsoft accounts work in other Microsoft products (e.g. OneDrive, Windows, Xbox), they are non-functional when visiting Outlook.com.
If you can’t choose any of the menu options, type inside an email message, calendar event, or Fix Outlook Support contact, Outlook may have frozen. There are three steps you can take to try to get Outlook working again. You might need to set Windows Update to automatically download and install recommended updates. Installing any important, recommended, and optional updates can often correct problems by replacing out-of-date files and fixing vulnerabilities.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.
When a Microsoft Office app, like Outlook, stops working, use Office’s built-in repair tool to fix your app. Microsoft includes this tool with all Office installations, and you can use it to find and resolve problems with all your Office applications. Wait for the antivirus to scan your system, find any viruses, and remove those items. If none of the Fix Outlook Support above methods fixes the ‘Outlook not responding’ problem, then there are chances that the Outlook PST in your Outlook profile is corrupt. In such scenarios, you need to repair the corrupt PST files. Check if the Outlook Will Not Open in Windows 10 error is now gone, by launching Outlook 2016.
We’ve presented the potential solutions in order from quickest to most time consuming. Find solutions to common problems or Fix Outlook Support get help from a support agent. Starting Outlook in safe mode, which starts Outlook without add-ins loaded, can tell you if an add-in is the source of the problem. Outlook may be running with settings meant for an older Windows version. You can start Outlook in safe mode, disable your add-ins, and then try to open Outlook normally. For example, the first time you try to Dismiss All on a list of reminders, Outlook asks you if you’re sure you want to do that.
Sometimes, Outlook fails to open when it can’t load your view settings in the app. In this case, you can reset your view settings before opening the app. Select your Microsoft Office installation on the list and choose “Change” at the top. In this case, open Outlook in safe mode where your add-ins aren’t loaded and remove any suspicious add-ins. Due to underlying system or PST issues, Outlook may crash, freeze, or not function properly.
Outlook may fail to open email due to corrupted Outlook profiles, add-ins, damaged OST/PST files, or outdated software. Antivirus conflicts and system issues can also cause startup errors or loading failures. This startup issue often appears when profiles get corrupted, damaged Outlook files, add-ins conflicts with system updates or antivirus. Should you Fix Outlook Support decide to remove a profile, back up the data files first. All offline cached content will be deleted when you choose Remove. For more information, see Introduction to Outlook Data Files (.pst and .ost).
If you don’t choose an option on that dialog box, Outlook won’t let you do anything else. Pressing Alt+Tab will help you switch from window to window and help you see Fix Outlook Support what dialog boxes might be stopping Outlook from responding. He is an expert Email Forensic, Cloud Computing, and a passionate nerd with over 10 years of experience in technical content writing. He writes about Cloud Migration, Database Recovery, Email Backup, Windows, Mac, and Tech. If you can’t choose any of the menu options, type inside an email message, calendar event, or contact, Outlook may have frozen. There are three steps you can take to try to get Outlook working again.