Review the warranty terms, check your warranty status, and learn about the protection plans for your Microsoft device or accessory.

Download Windows Media Player. Get Windows Media Player for your version of Windows, or learn how to play Windows Media files on your Mac. Get the details here.

Helping users safely navigate web, app, and game content is one of Microsoft’s top priorities. If you live in a region that requires permission to create an account and access Microsoft services, you may be prompted to request or give parental consent.

Learn how to tell if your Office software is genuine. To help determine if your Microsoft software is genuine, go to our How to Tell site for more information. Here you'll learn about authentic packaging, including what to look for with product key labels, and Certificate of Authenticity (COA), how to report counterfeit software, and find out what your shopping and licensing options are.

附註: 如果您使用Microsoft 帳戶登入 ，例如 Outlook.com、Hotmail、Live 或 MSN 電子郵件帳戶，而不是公司或學校帳戶，請登出，然後使用正確的帳戶再次登入。 不確定您是使用哪個帳戶登入嗎？ 在 Outlook 導覽標頭中選取 [客戶 管理員]。 如果您不是使用您想要的帳戶登入，請選取 [ 登出] 並再次開始程式 ...

Access, download, or run the Surface app and the Surface Diagnostic Toolkit to help find and solve Surface problems.

Find out how to use Game Bar to capture game play, chat with friends, track achievements, and more.

To find Sync settings, select Start , then select Settings > Accounts > Sync your settings . Choose from settings such as language preferences, passwords, and color themes. If you turn on Other Windows settings, Windows also syncs some device settings (for things like printers and mouse options), File Explorer settings, and notification preferences.

修复 Windows 中的声音或音频问题; 设置 Microsoft 新式无线耳机; 在 Microsoft Teams 中使用 Microsoft 新式无线耳机; 在 Microsoft Teams 中使用 Microsoft 新式 USB-C 耳机

In the To, Cc, or Bcc boxes, enter the recipients' email address or names.. As you start typing a recipient's name, Outlook will suggest the names of people you've emailed before. Those you've emailed most recently will be listed as Suggested contacts.You can pick a name from the list, type a full name or email address, or select the To, Cc, or Bcc button to see more options.