Learn how to find your Windows product key for activation or when to use a digital license instead.

In the search box on the taskbar, type device manager, then select Device Manager from the menu.

Teams 会保存整个聊天历史记录，一直保存到第一条消息。 如果有人 离开该组，他们的聊天响应将保留在聊天历史记录中。. 查看群组聊天中的人员 若要查看群组聊天中的人员，请点击屏幕顶部的参与者姓名以获取每个人的姓名列表。

How to redeem a gift card, Xbox download code or token. Both Microsoft and Xbox gift cards and download codes and tokens work the same way: once redeemed to your Microsoft account, you can spend your balance at Microsoft Store online, on Windows or Xbox, and you can get downloads for the latest apps, games, movies, TV shows, and Surface, Xbox, and accessories.

To turn off your PC in Windows 11, select the Start button, select the Power button, and then select Shut down .. Fix problems with the Start menu

准备好安装了吗？ 在开始之前，请确保电脑或 Mac 满足 系统要求。. 如果已兑换产品密钥，只需重新安装应用，或者知道你已通过工作或学校分配了许可证，则可以跳到 “登录”部分，下载并安装 Microsoft 365 或 Office。 但是，如果是 首次 安装 Microsoft 365 或 Office，可能需要先执行一些步骤。

Note: If you receive a prompt asking whether to allow the app to access your camera (iOS) or to allow the app to take pictures and record video (Android). select Allow so the authenticator app can access your camera to take a picture of the QR code in the next step.If you don't allow the camera, you can still set up the authenticator app as described in Manually add an account to the app.

Important: you should limit the number of administrators on your Windows device because administrators have complete control over the system.Administrators can change settings, install software, and access all files. If too many people have this level of access, it could lead to security risks like malware installation or unwanted changes to your system.

Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.

Under Choose default signature, set the following options.. In the E-mail account drop-down box, choose an email account to associate with the signature. You can have different signatures for each email account. You can have a signature automatically added to all new messages. Go to in the New messages drop-down box and select one of your signatures. If you don't want to automatically add a ...