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 can create a new why is Outlook not opening Outlook Data File and drag the items in the Lost and Found folder into the new data file. After you've moved all the items, you can remove the Recovered Personal Folders (.pst) file, including the Lost and Found folder. To create a new Outlook Data File, go to Create an Outlook Data File.

You also can select a day or time slot and create a new appointment or event. Keep track of appointments, meetings, or any other event from anywhere. Add, edit, or delete events using daily, weekly, or monthly views.

If Outlook won't open, you can't check your incoming messages or send an outgoing one from your desktop. You cannot create a new email address with @live.com as the domain address. You cannot create a new email with why is Outlook not opening @msn.com as the domain address. Existing Hotmail accounts have been permitted to keep their email addresses as well. If Microsoft Outlook is not working, we might be able to help you pinpoint why.

Be aware that if you are connecting to an Exchange Server mailbox, your mailbox or your email messages are already being scanned by antivirus software on the server. For more information, see You may experience application pauses if you have a large Outlook data file. Optionally, if you have a Microsoft Exchange online archive, you can move items to that archive or create retention policies to automatically dispose of older items.

These pop-up messages can sometimes make Outlook Not Opening in Windows 10 error. As a result, if Outlook seems stuck or not responding, check any open pop-up messages on your screen. To check for these messages, press Alt+Tab on your keyboard. It will help you switch between windows and see if any pop-ups need attention. Here's the deal, when Outlook manages to open, all the files you delete will automatically be recreated. It gets better because you also resolve all the Outlook opening issues.

This happens to accounts that are configured in the iOS Mail app. The loading of unregistered MAPI services has been disabled by default to make Outlook more secure. To access the calendar shared with your Microsoft 365 for business account, you'll need to accept 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. 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.

For more information about working with calendars in Outlook.com, go to Using the calendar in Outlook.com. Select More to see additional actions—for example, an option to print a message. If you want to learn about printing, see Print attachments received in email messages. 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.

With great functionality, you can manage your email, contacts, calendar as you like. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. These troubleshooting techniques apply to Outlook 2016 and 2011 for Mac. why is Outlook not opening Sometimes, when you’re using Outlook, it might ask for your confirmation before doing something. For example, if you try dismissing all reminders, Outlook might show a message asking, ‘Are you sure you want to do that?

Specifically around FSLogix (which we use) and a known issue. We’re going to add the registry setting to roam the paths listed in the known issue and re-register appx and see how we go. There are also notes about legacy per-user auth being an issue, however we had two accounts left in per-user auth but none with the issue. If you think that it is patch related, roll back the patch and see if that fixes it for the end users.

Some customers may experience a delay when trying to create a new email address, or alias, for their Outlook.com account. While these Microsoft accounts work in other Microsoft products (e.g. OneDrive, Windows, Xbox), they are non-functional when visiting Outlook.com. Outlook.com (the web version of Outlook) and Outlook apps require a 1st party alias (Outlook/Hotmail/Live/MSN) to send and receive email, use calendar, etc. Problems with the device, connection to power, network issues, viruses or malware, oversized files, and improper shutdowns all cause the PST file to act up. Outlook has a location where you can manually add approved email addresses to the Safe Senders list and ensure they never end up in your junk mail. It might be that Outlook is not responding, or it's not loading.