This article describes the sign in, sign out, lock, and switch user account actions in Windows. Expand the following sections to learn more.

Learn how to add user accounts in Windows 10 and Windows 11. With an account, each person has separate files, browser favorites, and a private desktop.

When you want to use your Surface, you’ll need to sign in. Find out about your options for signing in to and out of your Surface, including switching accounts and unlocking the screen.

The user account name on a Windows device shows the name of the signed-in Microsoft account or work/school account. To change which user is signed in, select the Start button on the taskbar.

Learn about user account basics in Windows. Sign in, sign out, lock, and switch account > Change or reset your Windows password > Change your user account picture > Using a Microsoft account in …

The sign-in options in Windows serve various purposes to enhance your user account security and sign in convenience. You can access the sign-in options from the Settings app.

Coming soon: Users will soon be able to use classic Outlook without switching out of new Outlook. When users select the toggle in new Outlook, they will have the option to open classic Outlook or …

Learn how to change your Windows sign in from a local account to a Microsoft account to sync your settings across all your devices.

To switch to a Microsoft 365 subscription with fewer features, you must cancel your existing subscription and then buy another subscription. You'll continue to use your old subscription until it expires.

You can easily switch between your work and personal Microsoft accounts with multiple account support in the To Do Android and Windows app. To add an account, tap your username and then Add account.