Certificate authority (CA) A certificate authority is an entity similar to a notary public. It issues digital certificates, signs certificates to verify their validity and tracks which certificates have been revoked or have expired. Top of Page Digital signature assurances The following terms and definitions show what assurances are provided by digital signatures. Authenticity The signer is ...

瞭解如何在行動裝置、Windows 裝置或 Xbox 主機上兌換 Microsoft/Xbox 禮品卡或其他代碼。

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 ...

How to create or edit your Outlook signature for email messages. Include your signature, text, images, electronic business card, and logo.

Note: AutoCorrect for symbols only works for HTML (the default) and Rich Text format message. If you are using a plain text format message, you can still use the keyboard shortcuts previously listed.

自 2025 年 3 月 19 起，不再支援適用於行動裝置的 Xbox Game Pass。 取得有關在其他裝置上進行雲端遊戲的詳細資訊。

SharePoint 是您透過網頁瀏覽器連線到的瀏覽器應用程式。 透過 SharePoint，您可以執行許多工作，例如：將檔案 上傳 和 共用 至文檔庫、與其他人 在檔案上共同 作業、建立 小組網站 或 通訊網站 等等。 如果貴組織已指派 包含 SharePoint 的授權給 您，您可以登入。 在本文中，我們探討了兩種最常見的 ...

手写签名可让你的文档具有个人风格。 你可以扫描你的签名，将其存储为图片，然后在 Word 文档中插入签名。 扫描手写签名并插入手写签名的图片 在纸张上写下您的签名。 扫描该页面并以常见的文件格式将其保存在计算机上：.bmp、.gif、.jpg 或 .png。

After you install a Windows update released on or after November 15, 2022, you might receive error messages when you provision and install an app to a device enrolled with a third-party MDM service.

Describes how to use the Regsvr32 tool to register and unregister OLE controls. Also describes the error messages that may occur and what they mean.