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Microsoft Support
Microsoft Support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows 11, Surface, and more.
Sign in to Microsoft 365
Learn how to sign in to Office or Microsoft 365 from a desktop application or your web browser.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, OneNote for Microsoft 365, Project Online Desktop Client, Publisher for Microsoft 365, Excel for Microsoft 365 for Mac, Word for Microsoft 365 for Mac, Outlook for Microsoft 365 for Mac, PowerPoint for Microsoft 365 for Mac, OneNote for Microsoft 365 for Mac, Excel 2024, Word 2024, Outlook 2024, PowerPoint 2024, Access 2024, OneNote 2024, Project Professional 2024, Project Standard 2024, Visio Professional 2024, Visio Standard 2024, Office 2024, Excel 2024 for Mac, Word 2024 for Mac, Outlook 2024 for Mac, PowerPoint 2024 for Mac, OneNote 2024 for Mac, Office 2024 for Mac, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Professional 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Excel 2021 for Mac, Word 2021 for Mac, Outlook 2021 for Mac, PowerPoint 2021 for Mac, OneNote 2021 for Mac, Office 2021 for Mac, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Professional 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Visio Standard 2016, OneNote for Mac, Microsoft 365 for home, Office 365 Small Business, Microsoft 365 admin, Project Online, Microsoft 365 for Mac, Project for Office 365
Account & profile | Xbox Support
Find solutions for Xbox account and profile issues, manage settings, and get support for your Xbox experience.
Xbox 狀態 | Xbox Support
檢查此頁面以了解 Xbox 功能和服務的狀態更新。
Microsoft 支持 | Microsoft Support
Microsoft 支持可帮助你处理 Microsoft 产品的问题。 查找有关 Microsoft Copilot、Microsoft 365、Windows 11、Surface 等的操作方法文章、视频和培训。
Download Microsoft Authenticator | Microsoft Support
The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.
获取购买的退款 | Xbox Support
订阅退款 你可以随时取消 Xbox 订阅。 关闭定期计费将停止订阅的未来扣费，并使你在订阅到期之前使用其权益。 你也可能有资格立即取消并获得退款；但不是所有订阅费用都能退款。 若要详细了解 Xbox 订阅的退款策略以及如何取消订阅，请转到： Xbox 订阅取消和退款 可在此处检查 Xbox 订阅的状态 ...
Microsoft 365 help & learning | Microsoft Support
Get support, help, and learning resources for Microsoft 365. Organize your life, expand your creativity, and protect what’s important with Microsoft 365.
Secure your account if you think you’ve been hacked
If you think your Microsoft account has been hacked, find out how to secure your account and check for unauthorized activity.