You can even add your @outlook.com email address to Mailbird and not miss out on any of your important conversations. See why Mailbird is trusted by thousands of Outlook users. All these give you a straight indication that there is a problem with your PST file. Without paying attention to the problem, the entire data can be lost.

This is a lightweight app designed to handle multiple accounts and fairly moderate email use. New features like Files and attachment previews let you see your pictures and files without leaving your inbox. If you manually type in the secondary connected account email address steps to fix Outlook not opening 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.

These troubleshooting techniques apply to Outlook 2016 and 2011 for Mac. Try these troubleshooting steps in the order presented here, from simple steps to fix Outlook not opening to more complicated. If you're trying to open Microsoft Outlook from your Start menu or a shortcut icon but it just won't launch, don't worry, there are a few things you can try to get it up and running again. Here are some common fixes that should work when Outlook doesn't open, whether you're using Windows or a Mac. With the help of these tips, you can fix the Outlook is Running Slow problem.

If you decide you don't want the calendar you created, right-click the calendar and select Remove. To show or hide the Folders list, select Show or Hide the navigation pane. Calendar events can be used for your own personal event, or you can invite others steps to fix Outlook not opening to create an in-person or Teams meeting. To change your Mail settings so your inbox looks and behaves the way you want it to, see Personalize your new Mail experience in Outlook.com. You can start Outlook in safe mode, disable your add-ins, and then try to open Outlook normally. Post questions, follow discussions and share your knowledge in the Outlook.com Community.

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.

Starting Outlook in Safe Mode will prevent some or all add-ins from being loaded, prevents several settings files from being loaded and turns off the Reading Pane. Get Help has troubleshooters for classic Outlook for Windows you can run for many common scenarios, such as Outlook startup or profile setup problems. These often help resolve issues without the need to contact support. When reaching this point of the guide, the issue most likely also occurs for other users on the computer. This means that the issue is not caused by a configuration setting but by an steps to fix Outlook not opening installation error.

To learn more about managing contacts in Outlook.com, go to Create, view, and edit contacts and contact lists in Outlook.com. Each message also has a mini toolbar when you open the message in a new window. For each message, you can delete it, mark it as unread, flag the message, or pin it to keep it at the top of your folder. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. We have multiple tools to help you automatically diagnose an issue, troubleshoot, and fix problems with Outlook.

Use Tasks to create, manage, and track things you want to get done. You can learn more about the new and classic tasks in Outlook.com by going to Use To Do App to manage tasks in Outlook. Contact someone directly by selecting Start chat or Send email.

If you can open the original Outlook Data File, you might be able to recover additional items. The Inbox Repair tool creates a backup file with the same name as the original, but with a .bak extension, and saves it in the same folder. There may be items in the backup file that you might be able to recover that the Inbox Repair tool couldn't.

However, if you want to change your password with your email provider, you'll need to visit their website or help desk, or contact your email administrator. For example, if you have a Yahoo! account, you first have to change your password at Yahoo.com. Once you've changed your password with your email provider, you can update the password in Outlook. See Change or update your email password for more information.