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

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

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.

Search for help on the taskbar, use the Tips app, select the Get help link in the Settings app, or go to support.microsoft.com/windows.

Find out how to get support for Microsoft apps and services.

Learn how to get Microsoft account help, troubleshoot sign in issues, keep your account secure, and manage your Microsoft account dashboard.

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.

Dec 17, 2025 · Welcome to the special edition of What's new in Microsoft 365 Copilot for both November and December 2025! Every edition, we highlight new features and enhancements to keep Microsoft …

Nov 11, 2025 · Microsoft combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). For general information about SSUs, see Servicing stack …

Get Microsoft billing support. Find help with Microsoft Store purchases, subscriptions, refunds, payment options, and checking your order history.