Digital signatures and certificates - Microsoft Support
A digital signature is an electronic, encrypted, stamp of authentication on digital information such as email messages, macros, or electronic documents. A signature confirms that the information originated from the signer and has not been altered. The following is an example of a signature line. Top of Page.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, PowerPoint 2021, Access 2021, Visio Professional 2021, Visio Standard 2021, Excel 2019, Word 2019, PowerPoint 2019, Access 2019, Visio Professional 2019, Visio Standard 2019, Excel 2016, Word 2016, PowerPoint 2016, Access 2016, Visio Professional 2016, Visio Standard 2016
Obtain a digital certificate and create a digital signature
If you plan to exchange digitally-signed documents together with other people, and you want the recipients of your documents to be able to verify the authenticity of your digital signature, you can obtain a digital certificate from a reputable third-party certificate authority (CA).
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Word 2021, Word 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Office 2016, Excel 2013, Word 2013, Outlook 2013, PowerPoint 2013, Office 2013
Set screen time limits across devices - Microsoft Support
Set screen time limits online. Learn how to manage and set device screen time limits on Windows, Xbox, and mobile devices connected through the Microsoft Family Safety app.
Applies To:
Microsoft Family Safety
Encrypt email messages - Microsoft Support
Encrypt email messages. Outlook for Microsoft 365 Outlook 2021 Outlook 2019 Outlook 2016. When you need to protect the privacy of an email message, encrypt it. Encrypting an email message in Outlook means it's converted from readable plain text into scrambled cipher text.
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016
Mouse and Keyboard Center download - Microsoft Support
The Microsoft Mouse and Keyboard Center is an app that helps you make the most out of your Microsoft keyboard and mouse. Mouse and Keyboard Center helps you personalize and customize how you work on your PC. This app is not available for Windows S mode . Download the latest release of Mouse and Keyboard Center: Latest release: Mouse and ...
Encrypt messages by using S/MIME in Outlook on the web
A digitally encrypted message can only be opened by recipients who have the correct key. A digital signature assures recipients that the message hasn’t been tampered with. Notes: Outlook on the web requires a Windows desktop device to support S/MIME.
Applies To:
Outlook.com, Outlook on the web for Exchange Server 2016, Outlook on the web for Exchange Server 2019
Contact - Microsoft Support
Contact Microsoft Support. What's new. Surface Pro. Surface Laptop. Surface Laptop Studio 2. Surface Laptop Go 3. Microsoft Copilot. AI in Windows. Explore Microsoft products.
Windows Speech Recognition commands - Microsoft Support
Learn how to control your PC by voice using Windows Speech Recognition commands for dictation, keyboard shortcuts, punctuation, apps, and more.
获取数字证书并创建数字签名 - Microsoft 支持
数字签名或 ID 通常称为 数字证书 。. 若要对 Office 文档进行数字签名，必须具有当前 (未过期) 数字证书。. 数字证书通常由证书颁发机构 (CA) 颁发，CA 是颁发数字证书供其他方使用的受信任的第三方实体。. 有许多商业第三方证书颁发机构可以从中购买数字证书 ...
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Word 2021, Word 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Office 2016, Excel 2013, Word 2013, Outlook 2013, PowerPoint 2013, Office 2013
针对 Windows 和 WSUS 的 2019 SHA-2 代码签名支持要求 - Microsoft 支持
任何不支持 SHA-2 的设备将无法在 2019 年 7 月当天或之后安装 Windows 更新。. 为了帮助你为此更改做好准备，我们发布了从 2019 年 3 月开始对 SHA-2 登录的支持，并进行了增量改进。. Windows Server Update Services (WSUS) 3.0 SP2 将接收 SHA-2 支持，以安全交付 SHA-2 签名的更新 ...