Learn what to do if you get a message telling you that your user profile is corrupted.

Windows Hello. Windows Hello 可使你通过你的面部、虹膜、指纹或 PIN 登录到你的设备、应用、在线服务和网络。 即使你的 Windows 设备可以使用 Windows Hello 生物识别，也不必这么做。

Microsoft Support offers assistance for Microsoft products, including how-to articles, videos, and training for various software and devices.

Sign in to account.microsoft.com, then select Order History on your Rewards page.

使用双重验证时，Microsoft Authenticator 应用可帮助你登录帐户。

Get Microsoft billing support. Find help with Microsoft Store purchases, subscriptions, refunds, payment options, and checking your order history.

Learn how to add a custom domain name to your Microsoft 365 subscription with this support guide from Microsoft.

Learn how to manage extensions in Microsoft Edge, including adding, disabling, or removing them as needed.

Learn how to join a Microsoft Teams meeting by link, calendar, channel, chat, or by calling in.

Learn how to create and add a signature to email messages you send in Outlook.com.