Microsoft Support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows 11, Surface, and more.

Use your Microsoft account to sign in to Microsoft services like Windows, Microsoft 365, OneDrive, Skype, Outlook, and Xbox Live.

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

Jul 16, 2025 · Changes the database context to the specified database or database snapshot.

Windows allows adding multiple user account to use the same device, enabling each user to have their own settings, documents, and applications. For example, parents can have their own accounts with …

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.

If your purchase of Office or Microsoft 365 came with a product key, you enter your product key on one of the websites listed below for your product. After you enter your key, you can download and install …

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

Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.

Office for the web programs are included in most Microsoft 365 plans. Click a document, or use the three-dot Open Menu in a library to open Word, Excel, PowerPoint, OneNote, and PDF files in your …