If you can't sign into your Microsoft account, most issues can be identified by our sign-in helper tool. The tool will ask you to enter the email address or mobile phone number you're trying to sign in with and check the details you provide. If we detect a problem with your account, we'll tell you what you need to do to solve the problem.

Generally, if you bought a physical copy of Windows, the product key should be on a label or card inside the box that Windows came in. If Windows came preinstalled on your PC, the product key should appear on a sticker on your device. If you’ve lost or can’t find the product key, contact the manufacturer. To ensure your product key is ...

Security. Microsoft will never proactively reach out to you to provide unsolicited PC or technical support. If you receive a phone call claiming to be from Microsoft, or see a pop-up window on your PC with a fake warning message and a phone number to call and get your “issue” fixed, it’s better to be safe and not click any links or ...

Check or change language settings. Windows 11 Windows 10 Outlook.com Microsoft Edge More... Microsoft's products and services work best if you use the same language and region across all your devices, and in all of your app and Store settings. Some account language settings are roamed across the Microsoft experience.

Select Sent Items in the left folder pane, then double-click the sent message to open it in a separate window. From the ribbon, select Recall Message, then select OK in the confirmation dialog box. Shortly thereafter, you'll receive a Message Recall Report in your inbox. Select the link in that message to see whether your recall has succeeded ...

重置忘记的 Microsoft 帐户密码. 如果知道密码，但只想更改密码，请转到 “account.microsoft.com 安全 ”选项卡，然后选择“ 更改我的密码 ”。. 如果知道用户名和密码但已停止工作，请阅读 我的用户名和密码已停止工作 。. 1. 选择“忘记了密码？. 如果“输入密码 ...

若要申请退款，需要登录用于购买的 Microsoft 帐户，并提供所购买内容的名称、订单编号以及需要退款的原因。. 可以联系 aka.ms/contactxboxsupport 以获取退款申请和其他支持。. 有关 Xbox 实物产品（如光盘游戏和控制器）和其他 Microsoft 产品的详细信息，请参阅 ...

Hotmail 現在為 Outlook.com. 若要登入 Hotmail，您將需要您的 Microsoft 帳戶使用者名稱和密碼。. 登入時，如果您下次想要直接移至信箱，請在 [保持登入?] 提示中選取 [是] (不建議用於共用電腦)。. 或者，選取 [不要再顯示這個] 方塊，然後選取 [否] ，這樣每次都會提示 ...

Open a service request in the Microsoft 365 admin center. This service is free. Get help and support, whether you're shopping now or need help with a past purchase. Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

如何兌換禮品卡、Xbox 下載代碼或令牌. Microsoft 和 Xbox 禮品卡以及下載代碼和令牌的運作方式相同：兌換到您的 Microsoft 帳戶后，您就可以在 Microsoft Store 網路商店、Windows 或 Xbox 上使用餘額，而且可以取得最新應用程式、遊戲、電影、電視節目和 Surface、Xbox 和 ...