Invisible digital signatures in Word, Excel, or PowerPoint. An invisible digital signature, like a visible digital signature line, assures the authenticity, integrity, and origin of a document.

This article explains how you can get or create a digital signature for use in Office documents. To learn more about how to use them in Office documents, see Add or remove a digital signature in Office files.. What is a digital signature?

Using clipboard. When you copy content on your PC, it’s automatically copied to your clipboard for you to paste. You can paste multiple items from your clipboard history, and you can also pin the items you tend to use all the time and sync your clipboard history to the cloud.

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.

如何激活预安装在新 Windows 10 计算机上的 Office 或使用新的产品密钥。

We’re continually releasing updates to our application, based on customer feedback. Check out What's New in the latest updates for Skype on desktop and mobile.

Note: If you receive a prompt asking whether to allow the app to access your camera (iOS) or to allow the app to take pictures and record video (Android). select Allow so the authenticator app can access your camera to take a picture of the QR code in the next step.If you don't allow the camera, you can still set up the authenticator app as described in Manually add an account to the app.

If you want to give access to desktop apps, make sure that Let desktop apps access your microphone is turned on.You can't turn off microphone access for individual apps. Others can't hear me. Try the following solutions:

Outlook でパスワードを受け付けられない. Microsoft アカウントのパスワードを忘れた場合は、 サインイン ヘルパー を使用してアカウントに戻ります。 メール アカウントに正しいパスワードを使用しているのに Outlook がそれを受け入れないことがわかっている場合は、追加のセキュリティが必要 ...

Going passwordless refers to removing your password and using a passwordless method to sign in instead. Passwordless solutions such as Windows Hello, the Microsoft Authenticator app, SMS or Email codes, and physical security keys provide a more secure and convenient sign-in method. While passwords can be guessed, stolen, or phished, only you can provide fingerprint authentication, or provide ...