Microsoft Authenticator is a mobile app that helps you sign in to all your accounts without using a password. Notes: Microsoft Authenticator is not available for PC or Mac as authenticator apps are typically designed for smartphones for security reasons. Learn more.

If your device is managed by an organization, check with your IT department to retrieve the recovery key. If you can’t find the BitLocker recovery key and are unable to undo any changes that caused it to be needed, you’ll have to reset your device using one of the Windows recovery options.

Manage your Microsoft 365 subscription or Office product. You can manage all of your Microsoft subscriptions in your Microsoft account dashboard. Select each subscription to change when and how you pay, or to see order history & receipts. Choose your account type.

Your Outlook.com account might be temporarily blocked because we noticed some unusual sign-in activity. We know that having your account blocked is frustrating, but we also want to protect you from fraud or abuse. To unblock your account, select the button to begin: Sign-in Helper.

手机连接 体验从 Windows 电脑和 手机连接 开始。. 从电脑中，你可以使用预安装在设备上的连接至 Windows 应用或可从 Google Play 或 Samsung Galaxy Store 下载的连接至 Windows 连接到选择 Android、Samsung、HONOR、OPPO、ASUS 和vivo体设备。. 可以通过 Android 设备和电脑之间的连接 ...

If your name, billing address, expiration date, or CVV number has changed for your Microsoft account payment method, you can update it. Update your payment method online. Sign in to the Payment options page with your Microsoft account. If you can't sign in, try troubleshooting issues with your Microsoft account.

Android 设备上的“连接至 Windows”. 如果之前在 Android 设备上运行“ 连接至 Windows ”，请确保更新应用以接收最新版本。. 连接至 Windows应用预安装在运行 Android 9.0 或更高版本的 Samsung、HONOR、Surface Duo 和 OPPO 设备上。. 在此类设备上，可以通过从屏幕顶部向下轻扫 ...

当 BitLocker 无法在 Windows 中自动解锁加密驱动器时，需要 BitLocker 恢复密钥。. 此密钥是一个 48 位数字，用于重新获得对驱动器的访问权限。. 在启动期间，系统可能会提示你输入 BitLocker 恢复密钥，因为存在安全风险或硬件更改：. 可能需要为数据或外部驱动器 ...

使用工作或学校帐户登录到Outlook 网页版. 转到 outlook.office.com。. 如果未使用工作或学校帐户自动登录，请按照提示输入工作或学校帐户的电子邮件地址和密码。. 按照之前可能已为此帐户设置的任何双重身份验证提示进行操作。. 选择“ 登录 ”。. (如果已登录到 ...

OneDrive gives you one place to store, share, and sync your work or school files. As part of your organization's Microsoft 365 subscription, or SharePoint Server, you can save your files in OneDrive and then work with them from almost any device.