After launching an Office app, you might receive a message that says Get genuine Office.. If you see this, we've determined that the Office product installed on your device isn't legitimate and you may be a victim of software counterfeiting.

Learn how to get the latest Windows updates. Find answers to FAQ about updating Windows to keep your PC up to date.

With Microsoft Forms, you can create a form (such as a survey or poll) or quiz (such as a math exam for students). Use form and quiz settings to specify deadlines, identify form responders, display correct answers for quizzes, and set other preferences for Microsoft Forms.

Learn how to receive a refund or exchange for items purchased from Microsoft.

Use Sway to create and share interactive reports, presentations, personal stories, and more.

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

Use the Xbox Accessories app to configure your controller or headset for your preferred gaming experience.

Your Microsoft account dashboard is where you can manage your personal information and security settings, keep tabs on your subscriptions and order history, and manage your payment and billing options.

即使已开启其他防火墙，开启 Microsoft Defender 防火墙也很重要。 它保护你免遭未经授权的访问。 若要打开或关闭 Microsoft Defender 防火墙，请执行以下操作：

Learn how to set up the new voice access feature with your microphone in Windows.