Learn how to sign into your PC with Windows Hello using a PIN, facial recognition, or fingerprint.

Learn how to activate Windows using an internet connection, automated system, or live support advocate.

Learn how to join a Microsoft Teams meeting if you don't have an account. Join a Teams meeting as a guest in the Windows app or on the web.

How to access your Microsoft account? If you have confirmed that your email is a Microsoft account, you can access it by following these steps:

Find out how to manage your Xbox subscriptions to request a refund or cancel a recurring payment.

This page is for Microsoft 365 Basic, Microsoft 365 Personal, and Microsoft 365 Family subscriptions only. For help with other subscriptions purchased through Microsoft see Cancel a Microsoft subscription. If you purchased a Microsoft subscription from Google Play or the Apple app store, contact their customer support for cancellation or refund.

了解在 Windows 中查找 BitLocker 恢复密钥的不同方法，并了解如何在系统上激活 BitLocker。

Microsoft アカウントにサインインするためのエイリアスを使用した Microsoft アカウントのメール アドレスまたは電話番号を変更する方法について説明します。

Learn how to troubleshoot Windows activation errors. Browse common activation errors and learn what you can do to fix them.

Get steps for how to change a known Microsoft account password.