Learn how to sign in to Office or Microsoft 365 from a desktop application or your web browser.

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

Install Microsoft 365 or Office 2024 on a PC Depending on your browser, select Run (in Microsoft Edge or Internet Explorer), Setup (in Chrome), or Save File (in Firefox). If you see the User …

Get help for the account you use with Microsoft. Find how to set up Microsoft account, protect it, and use it to manage your services and subscriptions.

Learn how to manage your Microsoft devices. Add, remove, register, or rename a device on your Microsoft account.

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

A Microsoft account recovery code is a 25-digit code used to help you regain access to your account if you forget your password or if your account is compromised.

Learn how to manage your Microsoft account security info and troubleshoot verification code issues.

Oct 14, 2025 · Windows 10 support ends on October 14, 2025. Upgrade to Windows 11 now to ensure continued security and feature updates. Learn more about the transition.

Get support, help, and learning resources for Microsoft 365. Organize your life, expand your creativity, and protect what’s important with Microsoft 365.