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
Add or remove a digital signature for Microsoft 365 files
To learn about digital signatures (also known as digital ID), what they can be used for, and how to use them in Word, Excel, and PowerPoint, see All about digital signatures. Create a signature line in Word or Excel (desktop) In the document or worksheet, place your pointer where you want to create a signature line. On the Insert tab, select Add a Signature Line in the Text group. In the ...
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Excel 2024, PowerPoint 2024, Excel 2021, Word 2021, PowerPoint 2021, Excel 2019, Word 2019, PowerPoint 2019, Excel 2016, Word 2016, PowerPoint 2016
Sign in to XBOX | XBOX Support - support.xbox.com
Need help setting up an XBOX profile or signing in to XBOX on your console, PC, or mobile device? This solution will help you sign in or create a new account.
建立或更新 Xbox 虛擬人偶 | Xbox Support
使用在精選 Xbox 360 遊戲中獲得的免費或虛擬人偶項目,在 Xbox 原創虛擬人偶應用程式中建立虛擬人偶。 然後拍攝自訂快照,製作您的玩家圖示。 全部摺疊
How to sign in to Hotmail | Microsoft Support
Hotmail is now Outlook.com. Learn how to sign in to access your Outlook.com, Hotmail, Live, or MSN email account.
Applies To:
Outlook.com
Get help with product key errors on Office.com/setup
Get help with product key errors, or geographical region errors, when you redeem a new Office product key on Office.com/setup.
Applies To:
Office 2024, Office 2024 for Mac, Office 2021, Office 2021 for Mac, Office 2019, Office 2016, Microsoft 365 for home
使用 Microsoft Authenticator 登入 | Microsoft Support
使用 Authenticator 作為登入方式 如果您的帳戶已開啟無密碼、雙步驟或多重要素驗證,請使用下列步驟來登入: 移至您要登入的網站。 在登入提示中輸入您的使用者名稱,然後選取 [ 下一步]。 選取 傳送通知。
Check or change language settings - Microsoft Support
Microsoft's products and services work best if you use the same language and region across all your devices, and in all of your app and Store settings. Some account language settings are roamed across the Microsoft experience. Pages are in the wrong language If you're seeing content on our website in the wrong language, check these settings:
Applies To:
Outlook.com, Microsoft 365 for Mac, Microsoft 365 for Windows, Microsoft Edge, OneDrive (home or personal)
2026 年 8 月 27 日 - KB5120998 (OS 内部版本 26200.9278 和 26100.9278) 预览版
此适用于 Windows 11 版本 25H2 和 24H2 (KB5120998) 的累积更新包括生产质量改进。 公告和消息 本部分提供与此版本相关的重要通知,包括公告、更改日志和终止支持通知。 Windows 安全启动证书过期 重要提示: 大多数 Windows 设备使用的安全启动证书从 2026 年 6 月开始过期。 在过去的几个月里,Microsoft 一直 ...
Microsoft アカウントがロックされている | Microsoft Support
Microsoft アカウントのロックを解除し、"アカウントがロックされました" というエラー メッセージを解決する方法について説明します。