How to test the voltage of the battery cabinet

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

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

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.

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.

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

A test is a series of questions that you must answer or actions that you must perform in order to show how much you know about a subject or how well you are able to do something.

More help If you''re using a work or school account and couldn''t install classic Outlook following the steps above, contact the IT admin in your organization for assistance.

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

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.