Xbox Support offers help for Xbox, Game Pass, and billing questions. Get advice and customer service in the Xbox Support community.

Learn how to add an app to run automatically at startup. Select the Start button and scroll to find the app you want to run at startup.

Using Authenticator as a way to sign in. If you have turned on passwordless, two-step, or multi-factor authentication for your account, use the following steps to sign-in:

Learn about what effect closing a Microsoft account might have on your other apps and services.

You can insert a drop-down list of valid entries (also called a drop-down menu or drop-down box) in Excel to make data entry easier, or to limit entries to certain items that you define.

Learn how to set up your user account for multifactor authentication with Microsoft 365.

Send large files by using file sharing, cloud services, or other solutions for working around file size limits in Outlook.

Outdated software can cause problems with a Windows upgrade, so removing old or nonessential applications can help. If you plan to reinstall the application later, make sure you have the installation media and all required activation information before removing it.

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

In Outlook, the black color theme includes dark mode, which provides a black background (instead of white) for the message window. You can switch to a white background for the message window if you prefer.