In the first place, check whether your antivirus is up-to-date. Reliable and trusted antivirus software vendors do care about compatibility with Microsoft Office applications, so there troubleshooting Outlook startup issues is a good chance that the issue is fixed in their latest update. If the above does not help, turn off the antivirus and see if it brings Outlook back to life.

If a troubleshooter is available for your issue, select Start to run that troubleshooter. Not something you want to take on lightly, but sometimes you have to. Be aware that you may need your product key if you received one. You can read how to fix your Outlook problem on the internet, but sometimes the suggestions don’t work for your specific case.

As @ode2joy ​ said, clearing out the user’s profile usually works, which is a more thorough procedure than just deleting .nst and .ost files. When something goes wrong with Outlook, Microsoft troubleshooting Outlook startup issues recommends that we start it in Safe mode. Simply that Outlook will be loaded without your add-ins and customization files. Originally, the freezing would only occur when I actually tried to do something. So, if I tried to open a message, search my inbox, write a new email, go to the calendar, etc., it would freeze up for about 5-10 seconds at a time. The freezing never seemed to occur when I had Outlook open but was not using it.

We're investigating the issue and will update this page when a fix is available. If you're using Outlook 2010, Outlook 2013 or Outlook 2016, uninstall and re-install iCloud to resolve this issue. This issue affects all Outlook versions on Windows 7, Windows 8, Windows 10. A lot of times, a user will click on something by accident and change their view and be unsure of how to get it back. If anyone finds a more permanent solution, I would appreciate it. It seems like something went wrong on Microsoft update and they might recall it or fix it, so we might need to wait untill that.

If you are having issues sending email, this might be due to validation issues with your Microsoft Account. We're aware of an issue where some users see the error message "Your message can't be displayed right now". Microsoft has released a Windows Hotfix file to remove the contacts folder synced by the Teams app. This fix will also lead to a reduction in the total number of contacts on your contact list. We will ensure that all information is retained and only contacts with matching information in all fields will be cleaned up. To check if you have received the fix, review your contact list to confirm duplicates have been removed.

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.

When you select a specific day in the calendar, any appointment or event scheduled for that day is listed in this area. You also can select a day or time slot and create a new appointment or event. Select More to see additional actions—for example, an option to print a message.

There’s nothing in particular troubleshooting Outlook startup issues to warn you about, as there are many informational and diagnostic information there, but reading the entries may lead to a clue about what’s going wrong. If you have Outlook in your startup folder, remove the shortcut from the startup folder. If anyone finds a more permanent solution, I would appreciate it. It seems like something went wrong on Microsoft update and they might recall it or fix it, so we might need to wait untill that. A vast community of Microsoft Office365 users that are working together to support the product and others.

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. Add a contact to your Favorites by selecting a contact in the list, and then selecting troubleshooting Outlook startup issues Add to favorites. Each message also has a mini toolbar when you open the message in a new window.

If you need to increase the number of this limit try the next resolution. Step 1 - The hard limit of recipients for a single email message is 300. Reduce the number of recipients for a single email to less than 300. Step 2 - Follow these instructions to install your Office application. Step 1 - Follow these instructions to uninstall your Office applications. If Outlook Desktop fails to connect, try these steps before escalating the issue to the ET&S Help Desk.

To effortlessly change your settings so that your inbox looks the way you want it to, see Personalize your new Mail experience in Outlook.com. New features like Files and attachment previews let you see your pictures and files without leaving your inbox. Occasionally, classic Outlook tries to run a process in the background. Auto-archive, sending and receiving a very large attachment, or running some of the other troubleshooting Outlook startup issues mailbox tools can all be done in the background. Check the status bar at the bottom of the screen to see if another process is running.