Learn how to check for the latest Windows Updates and install them to keep your device running smoothly and securely.

Here are the most likely causes for an unrecognized charge: A Microsoft subscription has recurring billing enabled. Someone you know, such as a family member, bought something with your card. You can now investigate this on the Manage your payments page. A previously declined charge was charged again. A pre-order or split order was shipped. Someone made an in-app purchase from an app, game, or ...

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

需要 Xbox 主機、Xbox 遊戲或 Xbox 網路的協助嗎? 了解如何與我們連絡。

Note If Device encryption doesn't appear, it's either unavailable on your device, or you might be signed in with a standard user account.

Find out how to use metered connections in Windows to control and help reduce data usage.

如何兑换礼品卡、Xbox 下载代码或令牌 Microsoft和 Xbox 礼品卡、下载代码和令牌的工作方式相同：一旦兑换到Microsoft帐户，即可在 Windows 或 Xbox 上的 Microsoft Store 在线商店 花费余额，并且可以获取最新应用、游戏、电影和电视节目的下载。 在某些国家或地区，你还可以购买 Surface、Xbox 和配件。

Learn how to manage your Microsoft devices. Add, remove, register, or rename a device on your Microsoft account.

Training: Get started with SharePoint in Microsoft 365. At office.com, sign in to SharePoint, then select the SharePoint tile.

Describes how to obtain the latest version of DirectX to enable games and multimedia applications on your system.