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Locate the device that you want to check the warranty on, then select Info & support.

安装 Windows 11. 在针对你的特定电脑测试和验证 Windows 11 升级后，Windows 更新将指示它已准备好安装。 若要检查 Windows 11 是否已为你的设备准备就绪，请转到“开始” “设置” >“更新和安全性” >“Windows 更新” ，然后选择“检查更新”。 如果升级适用于你的设备，并且想要继续，请下载并安装它。

To start enjoying Microsoft Rewards, you just need a Microsoft account.It connects you to all things Microsoft with one simple logon. Sign up now by going to Microsoft Rewards.Select Sign up for free and follow the steps to create a Microsoft account.. If you already have a Microsoft account, great!

IMPORTANT Starting on January 15, 2020, a full-screen notification will appear that describes the risk of continuing to use Windows 7 Service Pack 1 after it reaches end of support on January 14, 2020. The notification will remain on the screen until you interact with it. This notification will only appear on the following editions of Windows 7 Service Pack 1:

To increase security and performance, Windows 11 in S mode only runs apps from the Microsoft Store. If you want to install an app that isn't available in the Microsoft Store, or if you have Windows 10 Pro, Enterprise, or Education and want to upgrade to Windows 11, you'll need to permanently switch out of S mode.

First time, infrequent senders, or senders marked [External] - While it's not unusual to receive an email or Teams message from someone for the first time, especially if they are outside your organization, this can be a sign of phishing.Slow down and take extra care at these times. When you get an email or a Teams message from somebody you don't recognize, or that Outlook or Teams identifies ...

Training: Watch these videos to help your school, work, or organization use Microsoft Teams to video conference, work remotely, and become proficient using Teams.

Examples. See various examples in the figure below. Look closely at the use of the TEXT function in the second example in the figure. When you join a number to a string of text by using the concatenation operator, use the TEXT function to control the way the number is shown. The formula uses the underlying value from the referenced cell (.4 in this example) — not the formatted value you see ...

为什么我无法批准 手机连接 上的通知？ Android 13 要求是在 Android 设备上批准通知。 可以在配对过程中执行此操作，也可以在 Android 设备上转到 “系统设置 > 应用 > 连接至 Windows > 通知 ”并切换权限。 为什么需要授予通知权限？