Controller serial numbers are 14 characters long and don’t include dashes. Your controller serial number may not be recognized if you’ve never connected your controller, or if you connected for the first time within the last 48 hours.; If you have the Xbox Elite Wireless Controller Series 2, the 14-character serial number is in the lower center on the back of the controller.

断开设备与 Microsoft Store 的链接. 如果无法从 Microsoft Store 中下载内容，则你可能已达到了设备限制。 通过删除不使用的设备或者不再有权访问的设备来管理你的限制。

Describes how to add an International keyboard to Windows 11. Go to Region and select the Administrative tab, then select Copy settings.There you see options to copy your settings to your Welcome screen and system accounts.There's also an option to copy these settings to New user accounts.

Select Payment & billing, and then select Payment options.; Under Payment methods, select the payment method you tried to use to make the purchase.. For credit cards, debit cards, and direct debit, do the following: Select View or edit card and adjust the billing address as needed.; Select Save when finished.; For PayPal, do the following: If the email address is incorrect for your PayPal ...

groupby 函数允许通过公式创建数据摘要。它支持沿一个轴进行分组并聚合关联的值。 例如，如果你有一个销售数据表，则可以按年份生成销售摘要。

Review the warranty terms, check your warranty status, and learn about the protection plans for your Microsoft device or accessory.

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

Under Personalization & advertising, turn on or off the setting for Allow Microsoft to save your browsing activity including history, usage, favorites, web content, and other browsing data to personalize Microsoft Edge and Microsoft services like ads, search, shopping and news.

某些帐户是使用当前日期而不是出生日期创建的 - 这出人意料地很常见，我们正在努力防止帐户创建错误。 如果你是成年人，但帐户的出生日期不正确，则需要像更改孩子一样更改帐户信息。

Xbox Support offers help for Xbox, Game Pass, and billing questions. Get advice and customer service in the Xbox Support community.