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 use the Program Install and Uninstall troubleshooter to fix corrupted registry keys, blockages, and errors when you try to install or uninstall programs on Windows. Download the troubleshooter and follow the steps it provides.

Learn how to access your Hotmail or Outlook.com email account with your Microsoft Account password. Find troubleshooting tips, service status, and help options if you have problems signing in.

Learn how to view your Xbox purchases on your console or the web, and how to troubleshoot issues with unauthorized charges or refunds. Find out how to secure your account and prevent unauthorized purchases with an Xbox family group.

Follow the steps to download and install Microsoft 365 or Office 2019, 2016, or 2013 on your PC or Mac. Learn how to activate, troubleshoot, and customize your Office installation.

Learn how to check the status of your Rewards order after redeeming an award with your Microsoft account. Find out why your order may be cancelled and how to change your primary email address.

Learn how to get a refund for digital game products purchased from the Microsoft Store or Xbox apps within 14 days of the purchase date. Find out the eligibility criteria, guidelines, and resources for refund requests.

Learn about the next-generation Xbox consoles, how to set them up, and how to play games on them. Find out how to use Quick Resume, Smart Delivery, HDMI-CEC, Share button, and more.

Learn how to use Visio, a diagraming tool that makes it easy and intuitive to create flowcharts, diagrams, org charts, floor plans, engineering designs, and more. Browse hundreds of templates and sample diagrams by category or request ones that you want.

如果这是你第一次安装 Microsoft 365，则可能需要先执行一些设置步骤。展开下面的 “了解详细信息”部分。 但是如果是重新安装 Microsoft 365，且已兑换了产品密钥并拥有与 Microsoft 365 相关联的帐户，请转到“登录并安装 Office”的部分。