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on December 28, 2025
If so, wait a short time (usually two or three minutes) to see if Outlook starts working again. A profile is a group of settings that controls how Outlook works. It includes a listing of your accounts, autocomplete information, and your name and initials. To repair your Outlook profile or create a new one, see Fix your Outlook email connection by repairing your profile. If that message has an attachment that's larger than 20MB, delete the attachment and either attach a smaller file or attach a link to the attachment. For more information, go to Reduce attachment size to send large files with Outlook or Exchange Online limits.
The issues documented in this section have been reported after installing the recent updates listed below. We're investigating the issues and will update this page when a fix is available. In the meantime, please use the workarounds suggested for each issue.
There could be many reasons for this issue, including corrupted Outlook data files, conflicts between add-ins, or outdated software. Let’s explore the most common reasons why Outlook isn’t opening and how to resolve this frustrating situation. Outlook stores all your email messages, meetings and events, contacts, and tasks in data files. You can run the Inbox Repair Tool (scanpst.exe) to scan your Outlook data files and repair errors.
Repair a profile in OutlookIn Outlook, choose File.Choose Account Settings >Account Settings.On the Email tab, choose your account (profile), and then choose Repair. ...Follow the prompts in the wizard, and when you're done, restart Outlook.
To help you get rid of these duplicates, we have released a fix which will automatically clean up your contact list. This fix will clean up duplicate contacts for end users starting August 9, 2023. Rollout of the fix to all users will take few weeks, so, some users may see the fix applied by the end of September. Some Safari users are unable to add email addresses in the To section, or cannot point the cursor in the To field. If you used the workaround below you can now switch from using an Outlook.com alias to your country's domain.
When Microsoft Outlook is installed on your computer, numerous files, registry entries and configurations are set up to make sure the program runs smoothly. If any of these components are missing or corrupted during installation, Outlook may fail to open or could crash unexpectedly. You can determine if it's corrupted by creating a https://www.Tumblr.com/fixoutlookhelp new profile and changing which profile is used when Outlook starts.
This alias will be added to their account as a secondary alias, with the original 3rd party alias will continue to be set up as the primary. Once this step is complete, the user will land in their Outlook inbox and be able to use all Outlook functionality with this new email address. Sometimes, an Outlook add-in will crash and prevent your email messages from sending. To disable all add-ins, you can start Outlook in safe mode. If you can send email while Outlook is in safe mode, creating a new Outlook email profile should allow you to send email again.
Our 9 working solutions will help you fix the "Outlook Not Responding" issue and bring your Outlook back to life. The solutions work for Outlook 365, 2021, 2019, 2016, 2013, and earlier versions. If creating a new profile solves your issue, you can return to the Show Profiles dialog and delete your old profile. If repairing your Microsoft 365 programs didn't resolve your issue, move on to the next step.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. With the window with the Windows Update, you will see all the updates you need to make for your Microsoft Office. Compatibility mode is suitable for older software with Windows 10 that fail to run normally. Thankfully, Microsoft Outlook is fully optimized for Windows 10, meaning Compatibility mode is not necessary. You might be wondering what happens when you switch on the Compatibility mode for Outlook. When you do this, your Outlook might have opening problems.
Keep in mind this does take a while, and it’s usually best done after the user has left for the day. In many organizations, Outlook is one of the most common and core programs that are used from day to day. Fortunately, with the right Outlook troubleshooting strategies, many of the most common Outlook problems are quite straightforward to troubleshoot. Below, you will see some of the most common issues that users run into, and what the most efficient way to troubleshoot Outlook is.
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.