If you travel often, your new locations may show as unusual activity. To travel without disruptions or alerts, we recommend using Microsoft Authenticator to sign in.. If you get an email about unusual activity and you're not sure if it's from Microsoft, you can safely sign in to your Microsoft account any time without clicking links in the email.

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

Windows 11, version 23H2 ; July 25, 2024—KB5040527 (OS Builds 22621.3958 and 22631.3958) Preview; July 9, 2024—KB5040442 (OS Builds 22621.3880 and 22631.3880)

This article describes update 5001998 for Microsoft Outlook 2016 that was released on October 5, 2021. Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2016.

Learn how to use voice access for accessibility. This page includes accessibility help articles for people who use Windows voice access to control their PC and author text using their voice.

There are several different ways for family members and organizers to leave or be removed from a Microsoft family group depending on their role. Before leaving, family members and organizers should remove saved places and location alerts they would not like to remain in the group. Location alerts must be removed by the individual who set them for saved places to be deleted.

Add guests to a group. When you add guests, also known as external users, to a group, you're granting them access to all information within the group.

将你最常使用的应用固定到“开始”菜单。 操作方法如下： 从任务栏中选择"开始"，然后在列表中找到要固定的应用，或在搜索框中键入应用 名称进行搜索。

Learn how to tell if your Office software is genuine. To help determine if your Microsoft software is genuine, go to our How to Tell site for more information. Here you'll learn about authentic packaging, including what to look for with product key labels, and Certificate of Authenticity (COA), how to report counterfeit software, and find out what your shopping and licensing options are.

There isn't a way to determine with absolute certainty the codec used to compress a file, but the following are your best options: To determine what codec was used with a specific file, play the file in the Player, if possible.