了解如何在移动设备、Windows 设备或 Xbox 主机上兑换 Microsoft/Xbox 礼品卡或其他代码。按“开始”按钮 ，然后在“搜索”框中输入“商店”。 从结果中选择 Microsoft Store 以打开应用。选择屏幕右上角的帐户，然后选择 兑换充值码或礼品卡。输入由 25 个字符组成的代码，选择 下一步，然后按照提示操作。

Windows 11 Windows 10. 如果系统要求你提供 BitLocker 恢复密钥，以下信息可以帮助你找到恢复密钥，并了解系统要求你提供恢复密钥的原因。 重要: Microsoft 支持人员无法提供或重新创建丢失的 BitLocker 恢复密钥。 我可以从哪里找到 BitLocker 恢复密钥？ BitLocker 可能确保在激活保护之前安全备份恢复密钥。 你的恢复密钥可能在多个位置，具体取决于激活 BitLocker 时所做的选择： 播放视频时遇到问题？ 在 YouTube 上观看。 在 Microsoft 帐户中： 在另一台设备上打开 Web 浏览器。 转到 https://account.microsoft.com/devices/recoverykey 查找恢复密钥。

获取有关损坏或不可读代码的帮助. 如果无法读取数字代码的全部 25 个字符，则需要通过联系 aka.ms/contactxboxsupport 请求替换代码。. 联系支持人员时，请确保提供购买证明、序列号和损坏代码的图片。. 注意 请拍摄卡片正面和背面的图片，或拍摄打印代码的收据 ...

Set up the Authenticator app. After you install the Authenticator app, follow the steps below to add your account: Open the Authenticator app. Select (+) in the upper right corner. Point your camera at the QR code or follow the instructions provided in your account settings. After your account appears in your Authenticator app, you can use the ...

Update Windows. 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:

选择“ 开始 ” > “ 设置” > “ 系统” > “ 激活” 。. 如果你拥有有效产品密钥，请选择“更改产品密钥”，然后输入 25 个字符的产品密钥。. 如果没有有效产品密钥，请选择“转到 Microsoft Store”，根据说明购买 Windows 数字许可证。. 打开“激活”设置. 注意 ...

How to redeem a gift card or download code in Windows. Open the Microsoft Store app below. Microsoft Store. Select your personal icon at the top of the app and then select Redeem code or gift cards. Enter the 25-character code, and then select Redeem. Don’t worry about hyphens, the system takes care of those for you.

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

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

Select Update Driver. If Windows doesn't find a new driver, you can try looking for one on the device manufacturer's website and follow their instructions. Reinstall the device driver. In the search box on the taskbar, enter device manager, then select Device Manager.