To digitally sign an Office document, you must have a current (not expired) digital certificate. Digital certificates are typically issued by a certificate authority (CA), which is a trusted third-party entity that issues digital certificates for use by other parties.

On the remote screen, open the Sign in to your account page and enter the code that you see in Authenticator. On your remote screen, sign in using your work or school account credentials. After you complete your authentication on the remote screen, return to Authenticator to complete setup.

Sign in to your work or school account and then go to your My Account portal. Select Security info in the left menu or by using the link in the Security info pane. If you have already registered, you'll be prompted for two-factor verification. Then, select Add method in the Security info pane.

How to redeem a gift card, Xbox download code or token. Both Microsoft and Xbox gift cards and download codes and tokens 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, TV shows, and Surface, Xbox ...

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

Help with a work or school account password. I need to talk to a customer support agent. Learn how to get Microsoft account help, troubleshoot sign in issues, keep your account secure, and manage your Microsoft account dashboard.

There are a number of possible explanations for why verification codes don't always arrive. Read through the list of the most common causes, and see if any of them apply to you, or use our troubleshooter to help guide you.

若要使用凭据登录到工作或学校帐户来添加帐户：. 打开Authenticator应用，然后选择“+”按钮，然后点击 “添加工作或学校帐户 ”。. 选择“ 登录 ”。. 输入工作或学校帐户凭据。. 如果有临时访问通行证 (TAP) 可以使用它进行登录。. 此时，可能会被以下条件 ...

Select your version of Microsoft 365 below to learn how to activate Microsoft 365. Activate Microsoft 365 or a non-subscription version of Office. Activate Office that's pre-installed on a new Windows device. Activate an Office purchase or offer that's included on a new Windows device.

Looking for help? For help from an agent, follow the Get help link below to chat or request a call—we’ll call you so you don’t have to wait. For even faster help, search for your topic on our site. Get help.