如何兑换 Windows 激活代码. 在 Windows 电脑上，转到 “设置” 应用的 “激活 ” 部分，然后选择“ 更改产品密钥 ”。 打开“设置” 兑换代码时遇到问题？ 如果无法兑换代码，检查以下自助故障排除指南。 获取帮助. 需要更多帮助吗？ 了解如何在 Microsoft 帐户中花费资金 。 了解如何在 Xbox 主机上兑换礼品卡 。 访问 “错误 & 状态代码 ”页，详细了解兑换 Xbox 代码时的错误。 有关礼品卡退款的详细信息，请参阅 Microsoft 礼品卡条款和条件 。 请联系支持人员. 有关售前支持或购买问题， 请联系销售支持人员 。

主页. . 订阅和计费. 如何兑换礼品卡和代码. 通知. 信息. 对退款电子邮件有疑问？ 我们现在正在调查此问题。 在此期间，登录到你的帐户以查看最新的退款请求状态。 . 兑换礼品卡和充值码以进行 Xbox 购买和延长 Xbox 订阅。 代码的长度为 25 个字符，包括数字和字母，并且采用横竖 5 个字符的 5x5 格式。 代码可以是你从 Microsoft 或受信任的零售商处购买的数字卡或物理卡。 请注意，如果帐户的未结余额或付款选项不再有效，则无法激活或使用代码。 有关详细信息，请参阅： 在 Xbox 上查看和管理订阅. 重要 在兑换代码之前，请确保已登录到设备或浏览器上的正确 Microsoft 帐户。

Windows 11 Windows 10. If you’re working on a Windows PC and want the apps and content from another device to show on your PC screen, you’ll want to consider mirroring that device‘s screen or projecting it to your PC. Note that you’ll need a device that supports Miracast. Here’s how to mirror another screen or project to your PC.

In Windows 11, you decide when and how to get the latest updates to keep your device running smoothly and securely. To manage your options and see available updates, select Check for Windows updates. Or select Start > Settings > Windows Update . Here's some other info you might be looking for:

转到“配置文件和系统”>“设置”>“帐户”>“付款和帐单”。. 选择“订单历史记录”以查看你的购买。. 注意事项：. 无法使用 Microsoft 或 Xbox 礼品卡购买 Xbox 360 商城的内容或 Xbox One 上的 Xbox 360 内容。. 购买 Microsoft 或 Xbox 礼品卡时，确保使用的货币与接收人 ...

Contact us. Sign in so we can get you the right help and support. Select the product you need help with. We'll show you self-help options first. Additional help is available if you need it, including live chat with a Microsoft specialist. Microsoft 365. Office. Windows. Xbox. Surface devices. Copilot. Dynamics 365. Intune. Azure. Server products.

Go to https://account.microsoft.com/devices/recoverykey to find your recovery key. Tip: You can sign into your Microsoft account on any device with internet access, such as a smartphone. It should look something like this:

Windows 10. There are different ways to remove apps and programs, so if you can't find the one you're looking for, you can try another location. Note that some apps and programs are built into Windows and can't be uninstalled. You can try to repair a program first, if it's just not running correctly. Windows 11 Windows 10.

A Windows product key is a 25-character code used to activate Windows. It looks like this: PRODUCT KEY: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX. Locate your product key for Windows 10 or Windows 11. Depending on how you got your copy of Windows 10 or Windows 11, you'll need either a 25-character product key or a digital license to activate it.

Choose your preferred search engine from the Search engine used in the address bar menu. To add a different search engine, perform a search in the address bar using that search engine (or a website that supports search, like a wiki site). Then go to Settings and more > Settings > Privacy, search, and services > Address bar and search.