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

With Edge Chromium, you can add multiple profiles. Profiles allow multiple users to operate in a shared environment while maintaining access to their personalized browser settings, bookmarks, and extensions.

Data Execution Prevention (DEP) is a technology built into Windows that helps protect you from malicious code launching from areas of memory that have been designated as for data only.

Note: If a compatibility issue has been identified on your device that would disrupt your experience using Windows 11, we will temporarily delay your upgrade until the issue is resolved.Compatibility safeguard holds help ensure you have the best experience possible when upgrading and your productivity is not disrupted if critical apps or drivers are not yet compatible.

了解 Xbox 云游戏在 Android、Apple 和 Windows 设备以及 Xbox 主机和 Samsung 智能电视上的工作原理。

Under Personalization & advertising, turn on or off the setting for Allow Microsoft to save your browsing activity including history, usage, favorites, web content, and other browsing data to personalize Microsoft Edge and Microsoft services like ads, search, shopping and news.

提示: 如果你也检查“在我的手机上设置 Outlook Mobile”框，你将被带到一个网站，你可以在其中输入你的移动电话号码，你将收到下载 Outlook for iOS 或 Outlook for Android 的链接。安装 Outlook Mobile 是随时随地保持最新状态的好方法。

You may see an "account frozen" message and icon if you have exceeded your storage allowance and/or haven't signed in for a long time. You just need to get back under your Microsoft storage quota to get access to your files again.

Check for updates in the Phone Link by opening Settings > About > Check for updates.Install any pending updates to make sure your content stays up-to-date. You may also need to check for updates in the Link to Windows app on your Android device.

即使应用关闭或设备处于锁定状态，闹钟和计时器也能正常工作。 如果看到警告，通知仅在设备处于唤醒状态时显示，请确保设备未进入睡眠状态， (转到 “开始 > 设置” > 系统 > 电源 & 睡眠 “以调整设备的睡眠设置) 。