Learn how to register your security info and mobile device to reset your work or school password. Find out the common problems and solutions for using https://aka.ms/mysecurityinfo.

Pour obtenir de l’aide dans Outlook.com, cliquez ici ou sélectionnez Aide dans la barre de menus et entrez votre requête. Si l'auto-assistance ne résout pas votre problème, faites défiler la page jusqu'à la rubrique Avez-vous toujours besoin d'aide ? et sélectionnez Oui.. Pour nous contacter dans Outlook.com, vous devez vous connecter.

Learn how to access SharePoint, a browser-based app for online collaboration and document management, through your web browser. Find out how to check your subscription, troubleshoot issues, and get training for SharePoint.

Learn how to create, manage, and join distribution groups in Outlook Web App or Exchange admin center. Find out how to control who can send to your groups and set up moderated groups.

Learn how to deal with certificate errors in Internet Explorer, what they mean, and how to fix them. Find out when it's safe to ignore a certificate error and when you should avoid a site with a problematic certificate.

Learn how to use your work or school account to access and use your organization's cloud-based apps from the web-based My Apps portal. Find out how to download and install the My Apps Secure Sign-in Extension and the mobile Edge browser app for more convenience and features.

注意: 如果使用 Microsoft 帐户 （例如 Outlook.com 、Hotmail、Live 或 MSN 电子邮件帐户）而不是工作或学校帐户登录，请注销，然后使用正确的帐户重新登录。 不确定使用哪个帐户登录？ 在 Outlook 导航标头中选择 “帐户管理员 ”。 如果未使用所需帐户登录，请选择“ 注销 ”并重新开始该过程，或选择 ...

Learn how to access Teams on the web with a Microsoft 365 account and a supported browser. Find the web app at https://teams.microsoft.com and review the latest browser prerequisites.

Learn how to join a Teams meeting from your calendar, the app, or the web. Find out how to turn on your camera, choose your audio settings, and download the app if needed.

Personal Vault is a protected area in OneDrive where you can store your most important or sensitive files and photos. Learn how to enable, lock, unlock, and upload or move files to Personal Vault with a second step of identity verification.