To learn about digital signatures (also known as digital ID), what they can be used for, and how to them in Word, Excel, and PowerPoint, see All about digital signatures. Create a signature line in Word or Excel In the document or worksheet, place your pointer where you want to create a signature line. On the Insert tab, select Signature Line in the Text group. In the Signature Setup dialog ...

If you see error code 0x87e00196, you’ll need to reinstall your Gaming Services package. Find out how here.

The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

在Outlook中，你可以為電子郵件建立一個或多個個人化簽名。 你的簽名可以包含文字、連結、圖片和圖片 (，例如你的手寫簽名或標誌) 。

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 It issues digital certificates, signs certificates to verify their validity and tracks which certificates have been revoked or have expired.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 ...

Find out how to manage members’ funds and purchases.

Create a custom signature block with a picture and social networking icons to add as a new signature for your email messages.

Learn how to fix error 87E0000F so you can download games and apps on your Xbox console or Windows PC.

Microsoft and Xbox gift cards, download codes and tokens all work the same way: once redeemed to your Microsoft account, you can spend your balance at Microsoft Store online, on Windows or Xbox, and you can get downloads for the latest apps, games, movies and TV shows.

Learn how to prevent unauthorized purchases on your Xbox by creating Microsoft accounts for every person who uses that console.