Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

Learn how to install, reinstall, or activate Microsoft 365 or Office 2024 on a PC or Mac.

For Microsoft 365 or Office apps installed on a Windows PC: If you're not already in a Microsoft 365 or Office file or document, open an app such as Word or Excel, and open an existing file, or create a new one.

Learn about the different reset options in Windows and how to reset your device.

Learn how to install Office 2021, 2019, or 2016 on your PC or Mac.

2025年2月4日 · Learn how to install Windows 11, including the recommended option of using the Windows Update page in Settings.

Discover the step-by-step process to change or reset your Windows password if you've lost or forgotten it. This guide will help you regain access to your Windows account quickly and securely.

2025年7月31日 · For volume licensing support, open your Microsoft 365 admin center, select Help & support, and search for "manage volume licensing" or submit an online support request. Don't forget to include your license ID or agreement number, your contact phone number & email address so we can contact you.

Learn how to troubleshoot problems updating Windows. Find answers to common questions and issues installing Windows updates.

Use an existing Microsoft account to get started, then add your new account later. Set up your PC using a local account, then learn how to Change from a local account to a Microsoft account.