If your system is asking you for your BitLocker recovery key, the following information may help you locate your recovery key and understand why you're being asked to provide it. Important: Microsoft support is unable to provide, or recreate, a lost BitLocker recovery key.

Find out how to submit a request for a refund for a purchase of digital Xbox content.

Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

你的购买可能会因为以下某个原因而受到阻止： 近期有过多遭拒的购买尝试。 使用了来自可疑位置的 Microsoft 帐户或支付选项。

了解在 Microsoft Store 尝试购买内容时如何解决 Xbox 购买错误。

Set screen time limits online. Learn how to manage and set device screen time limits on Windows, Xbox, and mobile devices connected through the Microsoft Family Safety app.

了解如何修复错误“很抱歉，您的帐单地址有问题”，以便可以使用您的 Xbox 帐户进行购买。

Looking for help? For help from an agent, follow the Get help link below to chat or request a call—we’ll call you so you don’t have to wait. For even faster help, search for your topic on our site. Get help.

Follow these steps to update your settings to your new country/region, and then restart your Xbox console. When you make your first purchase in the new locale, you'll be prompted to update your billing info. Sign in to your Xbox console. Press the Xbox button to open the guide.

Get Microsoft billing support. Find help with Microsoft Store purchases, subscriptions, refunds, payment options, and checking your order history.