1 Tips for Improving Performance of Microsoft 365 Outlook IST Knowledge Base Confluence
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Until you can install the Windows Update fix release, you can set a registry key that will cause Outlook to stop using the local Windows Search service. When this registry key is set, Outlook will use its own built-in search engine. The built-in search will display the message below to indicate it is not using the Windows Search service. 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.

Take it one step at a time, and youll have Outlook working again soon. There are many methods to repair Microsoft Outlook 365, but none can deal with highly corrupted PST file. In such case, Kernel for Outlook PST Repair tool comes in handy.

Repeat the process for all the add-ins that were selected earlier and wait until the Outlook crashing problem repeats. Should you decide to remove a profile, back up the data files first. All offline cached content will be deleted when you choose Remove. For more information, see Introduction to Outlook Data Files (.pst and .ost). The steps to access the repair tool vary depending on your operating system.

I would encourage readers to fix it by trying the solutions in this article. While carrying out the above methods it is advisable to close Outlook beforehand. But little tools that add extra features to Outlook can be the reasons for Outlook corruption. TrustedTech delivers unbeatable customer service, with experts in licensing and high-level technicians always on-call to answer your tech issues in-depth. In many organizations, Outlook is one of the most common and core programs that are used from Fix Outlook Site day to day.

After October 14, 2025, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows 10. Your PC will still work, Fix Outlook Site but we recommend moving to Windows 11.

If you try to perform other actions while Outlook is in use, Outlook may not respond. Let the task in process finish its job before you try another action. Performance may be decreased if you use the Outlook AutoArchive feature or sync to Outlook with a mobile device. These steps are provided in a specific order based on commonality and complexity. If the troubleshooter can't fix your issue, or if you'd like to fix it yourself, see the next section. Create your account and connect with a world of communities.

The team is sweeping all remaining capacity to identify and address residual issues. 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.

In some scenarios, doing so fixes the "Outlook will not open" issue. However, if installing updates doesnt fix the problem, then try to repair your Office programs. Then, you can try to start Outlook 2016 in Safe Mode and then check which add-in is causing Outlook issues, disabling that add-in.

Find solutions to common problems or get help from a support agent. To get help and troubleshoot other Microsoft products and services, enter your problem here. Some customers may Fix Outlook Site not be able to see their Profile, Account or Sign Out options when selecting their picture on the top toolbar. Some users may not be able to empty their Deleted Items folder. We will update this article as soon as we have more information on a fix. While we fix the problem, you can send the file as a OneDrive link.

If the network is performing slowly, Outlook must wait for read and write operations to the AppData directory to finish. We recommend that you move several items in your larger folders to separate folders, or that you archive those items by using the AutoArchive feature. Make sure that the latest updates for Outlook are installed. For more information, see How Fix Outlook Site to install the latest applicable updates for Microsoft Outlook (US English only). For more information, see Support for Office 2016 and 2019 clients connecting to Microsoft 365 services has ended. Running the /resetnavpane command removes all customizations to the navigation pane.

In this case, youll have to remove your apps cache to resolve your issue. Should you decide to remove a profile, back up the data files first. All offline cached content will be deleted when you choose Remove. For more information, see Introduction to Outlook Data Files (.pst and .ost). If your issue with Outlook persists, use the repair tools "Online Repair" option to fix your app problems. This option takes longer than the first one and requires an active internet connection to resolve your app issues.

For example, writing gamil.com instead of gmail.com is a common typo that will cause problems with delivery. If you manually type in the secondary connected account email address in the "From" field, the email is sent as "On behalf of" your primary Outlook.com account. Refer to our comprehensive list of common SMTP settings or consult your email provider for the correct parameters. Incorrect SMTP parameters are a frequent cause of email sending issues. Your email client needs the correct settings to communicate with the SMTP server. To access the calendar Fix Outlook Site shared with your Microsoft 365 for business account, you'll need to accept the invitation from Outlook on the web, iOS, or Android.