Blogs
on December 30, 2025
Anyone who hasn’t opened an email in, say, 60 days should be tagged for a re-engagement email campaign. Sender Certification boosts inbox placement and shows MBPs you meet the highest sending standards. When you try to accept a shared Outlook.com calendar using your Microsoft 365 for business account in Outlook 2016, you might receive the "Something went wrong" error or your sign-in might fail.
When users select the Manage Microsoft Storage quota link at the bottom corner in Outlook.com, they are taken to a blank Settings page. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. If you can't open Outlook, or Outlook disappears improve Outlook stability or crashes, one of your add-ins may be to blame or you may need to update Outlook. Minor correction on the path for the GPO, from Outlook Options to Preferences and then Calendar Options, at least this is in the updated ADMX files I downloaded yesterday. The folder may have been deleted or the server where the folder is stored may be unavailable.
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.
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 improve Outlook stability 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.
To access the calendar shared with your Microsoft 365 for business account, you'll need to accept improve Outlook stability the invitation from Outlook on the web, iOS, or Android. If you've already clicked the Accept button in Outlook 2016, you won't be able to re-accept the invitation from another Outlook application. The person who sent you the invitation will need to remove your permissions and then send a new invitation. You can also add the secondary connected accounts (Gmail, Yahoo, etc.) in Outlook.com as additional accounts in the Outlook profile.
It gets better because you also resolve all the Outlook opening issues. If the in-box Program cannot fix the corrupted Outlook PST files, you can also try Wondershare Repairit for Email. It is a powerful and almighty software that can be applied to fix corrupt Outlook PST files in any scenarios. If you are trapped in a similar situation that my Outlook is not opening, you may feel disturbed about the problem. In the following post, you will find out solutions for the common Outlook not opening problems bonus tips to prevent the problem from happening again. Maybe you've added a new program to your computer that doesn't get along with Outlook, or your system has a virus.
After you delete the Outlook App Data folder, we suggest you restart your system first and then, open Outlook. If you’re still having problems, you can try resetting your Windows Firewall settings back to default. Then, you can try to start Outlook 2016 in Safe Mode and then check which add-in is causing Outlook issues, disabling that add-in. Since your app doesn’t open, you’ll have to use another Office app on your PC to trigger the update. This is because when you update one Office app, it automatically updates all other Office apps on your PC. Here, enable the "Quick Repair" option and choose "Repair."
The navigation pane is the leftmost pane in Outlook where you'll find your folder list and the icons to move between Mail, Calendar, People, and Tasks. Running the /resetnavpane command removes all customizations to the navigation pane. You can determine if it's corrupted by creating a new profile and changing which profile is used when Outlook starts.
For more information about when builds are available for their respective channels, go to Update history for Microsoft 365. We're investigating the issue and will update this page when a fix is available. MAPI does not validate that a provider's DLL that it is requested to load is registered correctly in MapiSVC.inf or even that it comes from the local machine. This can be exploited by creating a file together with an OLE object in such a way to cause MAPI to load a DLL from a network share when the OLE object is activated. If you're using Outlook 2010, Outlook 2013 or Outlook 2016, uninstall and re-install iCloud to resolve this issue.