如果你是首次安装 Windows 10，则需要输入有效的 Windows 10 产品密钥，或在安装过程中购买完整版的 Windows 10，才能使此工具正常工作。 如果你之前已在自己的设备上安装了 Windows 10，你应该拥有数字许可证，而且 Windows 10 将自动激活，无需输入产品密钥。

Get a free version of Microsoft Teams (for work, school, or friends and family) If you don’t have Microsoft 365 and you don’t use a business or school account, you can get a basic version of Microsoft Teams.

Energy saver automatically manages system processes and power usage for an optimal balance of PC performance and longer battery life. Select Start > Settings > System > Power & battery .If you want energy saver to turn on whenever the battery falls below a certain level, select Energy saver to expand options, then next to Turn energy saver on when battery level is at, select the battery level ...

如果在 Xbox 或 Windows 上启动游戏时看到错误0x803F8003，请了解如何解决该问题。

Scan the page and save it on your computer in a common file format: .bmp, .jpg, or .png. For information on how to use your scanner, use the manufacturer’s manual or Web site.

Important: You don't need to remove old security information unless there is an account security risk (e.g. someone else has access to your old mailbox).

借记卡上的资金不足; 信用卡已到期; 你的信用卡被盗，因此你关闭了该帐户; 你收到了一张新信用卡，并关闭了旧信用卡

Manage invitations to share Microsoft 365. On the Microsoft account, Sharing page, under the section Other people, you can view and manage invitations you’ve created.You can check the status of an invitation, resend, or delete invitations. If the person you sent an invitation to can't find it, see Can't find an invitation to share Microsoft 365 Family.

With online threats getting more advanced day by day, it is important to prioritize the safety of your web browsing. Microsoft Edge offers several features and practices that can enhance your online security and protect your personal information.

Microsoft 365 商业版. 如果你的 Microsoft 365 产品是以下之一，则你拥有 Microsoft 365 商业版 产品。 这些产品通常与工作或学校帐户相关联，且 Microsoft 365 许可证（如果你的订阅拥有一个许可证）来自你工作的组织或所在学校。