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.

If you get an email about unusual activity on your Microsoft account, or if you’re worried that someone else might have used your account, go to the Recent activity page. You’ll see when your Microsoft account was signed in during the last 30 days, along with any device or app-specific info.

The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

兑换数字代码. 所有 Xbox 数字代码长度均为 25 个字符，包括数字和字母，并且采用五组字符（每组包含五个字符）格式 (xxxxx-xxxxx-xxxxx-xxxxx-xxxxx)。. 如果你尝试在 Windows 或 Xbox 设备上兑换代码，请确保已正确输入所有 25 位数字。. 若要了解有关 Xbox 礼品卡和代码的 ...

Add, remove or update an email address or phone number. If you want to make changes to the email addresses or phone numbers associated with your Microsoft account, use our guided support tool below to help you update the right information in the right way.

Learn how to add user accounts in Windows 10 and Windows 11. With an account, each person has separate files, browser favorites, and a private desktop.

Enter your first and last name and click on Next. Select your country or region and your birthdate and click on Next. Enter the captcha code and click on Next. Verify your email address by entering the code that Microsoft sends to your email and click on Next.

Sending a message. If you haven't already set up messages, do the following: On your PC, in the Phone Link, select Messages. To start a new conversation, select New message. Enter the name or phone number of a contact. Select the person you want to send a message to.

Passkeys provide a more secure and convenient way to sign in. With passkeys, you can use Windows Hello to sign in with a PIN, facial recognition, or fingerprint, making the authentication process faster and more convenient than ever before.

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 和配件的下載。. 若要兌換 Microsoft 禮品卡 ...