Join a Teams meeting on the web. Don't have the Teams app? You can still join a Teams meeting. In your email invite, select Join the meeting now.. You can also use a dial-in number and conference ID from the email to call in.

为什么需要验证码？ 当你登录到你的 Microsoft 帐户时，我们可能会要求提供其他证明，证明确实是你的帐户。 最多可以添加 10 种不同的方法来验证登录，并且可以选择：

Description. The ROUND function rounds a number to a specified number of digits. For example, if cell A1 contains 23.7825, and you want to round that value to two decimal places, you can use the following formula:

个人设备的所有者或管理员激活了 BitLocker (在某些设备上也称为设备加密，) 通过“设置”应用或控制面板： 在这种情况下，激活 BitLocker 的用户选择了保存密钥的位置，或者在设备加密的情况下选择 (，) 自动将密钥保存到其 Microsoft 帐户。

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

We would like to show you a description here but the site won’t allow us.

Find everything you need to manage your Xbox account, profile, and more.

Browse on the go with the new Microsoft Edge for Android and iOS devices. Microsoft Edge offers better protection and privacy, and can sync your favorites, passwords, and more across your desktop and mobile devices.

Look in the Surface app. The easiest way to find which Surface model you have is to use the Surface app. It shows the model name of your Surface device and each Surface accessory.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.