If Outlook is configured to connect to the Exchange mailbox in Online mode, an .ost file is not used. To adjust the number of days of data that are synced for shared folders, add the following registry values. You can limit the synchronization window that’s used for calendar folders to reduce the number of items that are stored locally in your calendar folders.

If you get the error "Cannot open the Outlook window" when trying to start Outlook, the error usually indicates that website your Folder Pane or Navigation Pane settings holds a corruption. Just to make sure you are not trying to troubleshoot an issue which has already been solved, before you begin verify that you have installed all updates for your version of Outlook. Depending on the answers, you could possibly skip large portions of this guide or even directly get a solution to your startup issue. Most Outlook problems can be resolved with proper troubleshooting and maintenance. Following the fixes above will help you keep your Outlook running smoothly and protect your productivity.

Let's cover how to troubleshoot the Outlook indexing first. For all of the Mac users struggling with Outlook not responding, we have a few pointers for you as well. The page serves as a homepage for many people because it includes a link to Outlook, a weather update, aggregated news tailored to you, and Bing (Microsoft's search engine). Some of these accounts still exist as legacies, but it's confusing to sort through what is being phased out and what will remain available. To check if Outlook is not loading for everyone you can review the Microsoft Outlook twitter page, or check at a site like downdetector.com or isitdownrightnow.com.

If a Microsoft 365 application such as Word or Excel isn't working correctly, sometimes website restarting it will fix the problem. When you're done, you might need to restart your computer. You might need to set Windows Update to automatically download and install recommended updates.

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 Installing any important, recommended, and optional updates can often correct problems by replacing out-of-date files and fixing vulnerabilities.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. Find solutions to common problems or get help from a support agent. If you've changed your website password on the website for your email account, you'll need to change it in new Outlook, too.

Use the Microsoft 365 setup troubleshooter to install Microsoft 365, Office 2021, Office 2019, or Office 2016 on your Windows PC. This option could be useful if you constantly have to wait for Outlook to rebuild its data file when you restart. There are multiple ways for you to send and receive email, and multiple versions of Outlook available. If the images in these topics don't match what you see on your screen, you might be using a different version of Outlook. If you can't receive new email messages, there are several troubleshooting steps you can take. If you've successfully sent and received email from classic Outlook before, and now Outlook repeatedly asks you to reenter your password, one of two things may have happened.

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 your mail profile is damaged, Outlook often fails to start as well or you’ll find yourself encountering one error after the other. When the scan is done and errors have been fixed, run scanpst.exe again until no errors are found anymore. If after scanning the file more than 3 or 4 times errors are still found, you might want to copy over your data in a website new pst-file. However, like any software, Outlook isn’t immune to issues. Occasionally, classic Outlook tries to run a process in the background.

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.

If so, wait a short time (usually two or three minutes) to see if Outlook starts working again. Sometimes you’ll open Outlook and then for no apparent reason, it will freeze or website shut itself down. There are quite a few different causes for this, but one of the most common is a defective add-in. Here’s how to disable add-ins in Outlook even when it keeps crashing.