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 using Microsoft Authenticator - Microsoft Support
Before you can use Authenticator as a way to sign in, you need to download the app and have already added Authenticator to your accounts. Starting July 2025, the autofill feature in Authenticator will stop working, and from August 2025, passwords will no longer be accessible in Authenticator.
Download Microsoft Authenticator - Microsoft Support
The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.
在中国下载Microsoft Authenticator - Microsoft 支持
在 Android 设备上安装 Authenticator Google Play 商店在中国不可用,因此只能从以下商店下载Microsoft Authenticator: 联想 Oppo – 搜索要从 Oppo 存储区下载Microsoft Authenticator。 三星
Use Microsoft Authenticator with Microsoft 365
If your organization is using multi-factor authentication (MFA) for Microsoft 365, the easiest verification method to use is the Microsoft Authenticator smart phone app.
About Microsoft Authenticator - Microsoft Support
Microsoft Authenticator is a free app that helps you sign in to all your accounts without using a password - just use a fingerprint, face recognition, or a PIN.
Set up your Microsoft 365 sign-in for multi-factor authentication
The default authentication method is to use the free Microsoft Authenticator app. If you have it installed on your mobile device, select Next and follow the prompts to add this account.
Applies To:
Microsoft 365 admin
Insert a signature in a Word document - Microsoft Support
How to add a signature to your Word documents. You can also use the Signature Line command in Word to insert a line to show where to sign a document.
Applies To:
Word for Microsoft 365, Word for Microsoft 365 for Mac, Word 2024, Word 2024 for Mac, Word 2021, Word 2021 for Mac, Word 2019, Word 2016, Microsoft Office
Xbox Support
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Sign in to your account with a security key - Microsoft Support
If you’re tired of having to remember or reset your password, try using a FIDO2–compliant security key to sign in to your Microsoft account instead. What is a security key? A security key is a physical device that you can use instead of your user name and password to sign in. Since it needs to be unlocked with a fingerprint or PIN, even if someone has your security key, they won’t be ...