Manage background activity for apps in Windows
Learn how to manage background activity for apps to help save battery power in Windows.
Turn on device encryption - Microsoft Support
Learn how to turn on device encryption, or standard BitLocker encryption in Windows.
安装 Visio 或访问 Visio 网页版 - Microsoft 支持
安装 Visio (Visio 计划 2 或 Visio Professional) 下面介绍如何安装Visio 计划 2 附带的桌面应用，以及 Visio Professional 或 Visio Standard 2021、2019 或 2016 的非订阅版本。 若已拥有Visio 计划 1，请参阅“Visio for the web”选项卡下的步骤。 步骤 1：将 Visio 与你的帐户关联
Applies To:
Visio Plan 2, Visio Professional 2021, Visio Standard 2021, Visio Professional 2019, Visio Standard 2019, Visio Professional 2016, Visio Standard 2016, Office for business, Office 365 Small Business, Microsoft 365 admin, Office.com
Find and lock a lost Windows device - Microsoft Support
Use Find my device to locate and lock your lost or stolen Windows devices.
Applies To:
Microsoft account dashboard
How to play MP4 files in Windows 10 - Microsoft Support
Play MP4 files in Windows 10 by right-clicking the file and choosing what application to open it with.
How to use the PC Health Check app - Microsoft Support
Learn how to use the PC Health Check app to help you improve your device performance.
What is: Multifactor Authentication - Microsoft Support
Wondering what multifactor authentication, sometimes known as two step verification, is? This article will explain it clearly.
Product keys for Windows - Microsoft Support
A product key is a 25-character code that's used to activate Windows and helps verify that Windows hasn't been used on more PCs than the Microsoft Software License Terms allow.
October 10, 2023—KB5031358 (OS Build 22000.2538)
Windows 11, version 21H2; July 9, 2024—KB5040431 (OS Build 22000.3079) June 11, 2024—KB5039213 (OS Build 22000.3019) May 14, 2024—KB5037770 (OS Build 22000.2960)
Use Microsoft Teams on the web - Microsoft Support
The Microsoft Teams web app works for most desktop browsers, including Chrome, Firefox, and Internet Explorer.
Applies To:
Microsoft Teams