Here's some of the things you can do in the PC Health Check app in Windows: Related topics. Getting ready for the Windows 11 upgrade. How to check if your device meets Windows 11 system requirements after changing device hardware. Learn how to use the PC Health Check app to help you improve your device performance.

To find a customer service phone number in your country, please click a region and find your country. Note: Support cases for Surface devices may only be initiated online.

If you run into problems trying to connect to a Bluetooth device, here are some troubleshooting steps to try. Note: For general info about how to connect a Bluetooth device to your PC, see Pair a Bluetooth device in Windows.

You can send an invitation or add people to your Microsoft family to share your benefits. Once they accept the invitation, they can install Microsoft 365 apps on their devices and access their own 1 TB of OneDrive storage by signing in to www.microsoft365.com with their personal Microsoft account.

如何兌換禮品卡和代碼. 兌換禮品卡與代碼，以購買 Xbox 並擴充您的 Xbox 訂閱。. 代碼的長度為 25 個字元 (包含數字和英文字母)，並採用 5x5 格式，即以五個字元為一組，共五組。. 代碼可以是您向 Microsoft 或信任的零售商購買的數位或實體卡片。. 如果您的帳戶有 ...

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

如果已将 Xbox 和 Battle.net 帐户链接在一起，则之前为 Blizzard 游戏进行的游戏内购买（如虚拟货币或内容包）仍将可用。 如果了链接帐户，但缺少之前购买的游戏内内容，可以在此处联系客户支持：

Get Windows updates as soon as they're available for your device. When the latest Windows update is ready for your device, it will be available to download from the Windows Update page in Settings.

若要用 Game Pass 玩《使命召唤：现代战争 III》，你需要一个有效的 Game Pass 订阅。. 若要购买 Game Pass 订阅或了解有关不同订阅层级的详细信息，请转到：. Xbox Game Pass. 若要查看现有订阅，请访问：. Microsoft 帐户. 有关《使命召唤：现代战争 III》和动视账号的帮助 ...

If your purchase of Office or Microsoft 365 came with a product key, you enter your product key on one of the websites listed below for your product. After you enter your key, you can download and install Office, or you can renew your Microsoft 365 subscription. Tip: Get tech expertise with Business Assist.