Learn how to recover deleted items, such as email, contacts, calendar appointments, and tasks in Outlook.

An upgrade differs from an update in that it moves your PC from a previous version of Windows—such as Windows 10—to Windows 11. This FAQ is intended to answer questions about upgrading to Windows 11.

Learn about the UNIQUE function, which returns a list of unique values in a list or range. UNIQUE is in a class of functions called dynamic arrays.

You can repair some apps and programs if they're not running correctly. Note that you won't see repair, change, or modify options for all apps and programs.

If you forgot your work or school password, never got a password from your organization, or have been locked out of your account, you can use your security info and your mobile device to reset your work or school password.

Configure cameras In Camera settings, you can set default settings for each camera. The settings are stored for each camera and each user account—they don't synchronize between multiple Windows devices.

Learn how to find a Windows product key for activation, and when you'll use a digital license instead.

Get tips to help you find and restore lost or missing files, photos, or folders in OneDrive.

Learn how to change app notifications, banners, and sound settings in Windows.

If you’ve forgotten your Microsoft account password, learn how to do a password reset online or by using your Xbox console.