This article explains how to get your vCard (.vcf file) into CSV format so you can import your contacts into Outlook. IMPORTANT: Make sure you've exported all of your contacts from iCloud! The most common mistake we see customers make is they export only 1 contact from iCloud when they intended to export all of them. For instructions on exporting all of your contacts from iCloud, see Export ...

了解如何关闭双重验证。 双重验证是一项可选的安全功能，通过使用两种形式的身份，即密码和联系方式（也称为安全信息），这样别人更难进入您的 Microsoft 帐户。

你可能会因异常活动而被阻止。 Microsoft通过评估每次登录、注册或客户互动的可信度和可信度来保护你、你的帐户和我们的服务。 如果你的作触发了警报或与典型模式明显偏差，我们可能会将其解释为潜在风险行为，从而导致我们不会发送代码的临时阻止。 可能会有来自你的地理位置 的严重受损 ...

如果使用密钥登录时遇到问题，检查以下部分中的错误消息。 在 Windows 上登录时未显示“iPhone、iPad 或 Android 设备”QR 码 尝试使用密钥登录时，移动设备的 QR 码不显示有三个主要原因： 蓝牙未启用。 必须在两台设备上启用蓝牙：要登录的设备以及包含密钥的设备。 身份验证设备必须在范围内并 ...

Note: This content can help you with your work or school account. If you're having problems verification codes on a personal Microsoft account, see Troubleshooting verification code issues.

Errors CAA2000B, 4usqa, and 49dvs when trying to sign in to classic Outlook and Outlook for Mac

Two-step verification is an optional security feature that, by using two forms of identity—your password, and a contact method (also known as security info)—makes it harder for someone to break into your Microsoft account.

Important: You don't need to remove old security information unless there is an account security risk (e.g. someone else has access to your old mailbox). If you do need to replace your security information, make sure you add new information first. If you request removal of all security information in your account, the account is put into a restricted state for 30-days. Your information doesn't ...

Learn how to disable two-step verification for your Xbox account with step-by-step guidance.

Signing your email messages with a digital ID helps to prove your identity and prevent message tampering.