Windows 8.1 Update and Windows RT 8.1 Update (also known as KB 2919355) include improvements that make your favorite apps and settings easier to find and use, provide more familiar mouse and keyboard options, and update security and performance.Here’s what you need to know about installing this important update. Check to see if it’s already installed

借助 Teams 的外部访问，你可以添加或邀请 Teams 组织外部使用 Teams、Teams 个人使用、面向消费者的 Skype 以及Skype for Business一对一聊天的人员。

How does multifactor authentication work? Let's say you're going to sign into your Microsoft account or work or school account, and you enter your username and password.If that's all you need then anybody who knows your username and password can sign in as you from anywhere in the world!

If you want to make a different console your home Xbox: Press the Xbox button on your controller to open the guide.; Select Profile & system > Settings > General > Personalization, and then select My home Xbox.; Do either of the following to change the status of your console: To make this your home Xbox, select Make this my home Xbox.; To remove this console as your home Xbox, select Make this ...

Surface devices get updates through Windows Update. Find out what's included in each update and how to manually update your Surface. Select your device from the following list to see its update history.

The chat provider is the underlying service that Copilot in Windows uses to communicate with you. The chat provider platform is important because it's possible for you to copy and paste sensitive organizational information into the chat.

Choose from a variety of Surface devices and accessories to get help.

What is a Microsoft account used for? You need a Microsoft account to sign in to your Windows pc, Xbox console, or any of Microsoft’s products and services, including Office, Outlook.com, OneDrive, Xbox Live, Microsoft 365, Family Safety, Skype, Bing, Microsoft Store and MSN.

Learn more about updates for Windows 10 version 1903, including improvement and fixes, any known issues, and how to get the update.

If you select multiple files or folders and then select Download from Microsoft OneDrive, SharePoint in Microsoft 365, or from SharePoint Server Subscription Edition, your browser will start downloading a .zip file containing all the files and folders you selected. If you're in a folder and you select Download without selecting any files or folders, your browser will begin downloading all ...