If you’re using Microsoft 365, your IT administrator can set a rule in the Admin Center to always show the Cast icon in the Edge toolbar. Keep in mind, the Cast icon might not show up by default—you may need to turn it on yourself or ask an admin to set it up. Also, some people have noticed the Cast icon doesn’t appear on certain websites, like YouTube, when using Edge.

1. Use the Browser Settings

Most customization options for Microsoft Edge can be found in the browser’s settings, including adding the Cast icon to the toolbar. Unlike some options, this one requires a few extra steps. The option to add the Cast icon only appears after you search for available devices. Once you do, you can right-click on the icon and select the option to pin it to the toolbar.

2. Use the Registry Editor

You can also use the Registry Editor to add the Cast icon to the Edge toolbar. This method is usually intended for administrators, because standard user accounts can’t access the Registry Editor without permission. Using this method, you can prevent other users from changing this setting via the browser. If you enable the Cast icon from the Registry, it will stay in the toolbar until you disable it again through the Registry.

3. Use the Local Group Policy Editor

This method works similarly to the Registry Editor method but is only available on Windows Pro, Enterprise, or Education editions (the Local Group Policy Editor isn’t available in Windows Home). Also, some systems may have outdated policy files for Microsoft Edge. The new Chromium-based Edge browser requires up-to-date policy files to configure these settings.

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