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.

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

要执行此任务. 执行此操作. 添加视频. 选择“视频”>“开始我的视频”。 隐藏预览. 选择“视频”>“隐藏我的预览”。 共享预览. 选择“视频”>“显示我的预览”。 停止共享视频. 选择“视频”>“停止我的视频”。 离开视频². 选择“视频”>“离开视频”。 将呼叫置于保持状态

Important: Before trying any of the solutions below, make sure you back up your personal files. You can back up your Windows PC, or insert a USB drive and use File Explorer to drag and copy important files to the USB drive.If you’re signing into Windows with a Microsoft account, your system settings will be automatically restored after updating, once you’re connected to the internet.

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。

After you create your drop-down list, make sure it works the way you want. For example, you might want to check to see if Change the column width and row height to show all your entries.. If the list of entries for your drop-down list is on another worksheet and you want to prevent users from seeing it or making changes, consider hiding and protecting that worksheet.

To do this. Press. Move to the Tell me or Search field on the ribbon and type a search term for assistance or Help content.. Alt+Q, then enter the search term. Open the File menu.. Alt+F. Open the Home tab and format text and numbers and use the Find tool.. Alt+H. Open the Insert tab and insert PivotTables, charts, add-ins, Sparklines, pictures, shapes, headers, or text boxes.

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。

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

Windows 11 in S mode is designed for security and performance, exclusively running apps from the Microsoft Store. If you want to install an app that isn't available in the Microsoft Store, you'll need to switch out of S mode.