How to update to windows 11 after chosing "stay on windows 10 for now"

At some point in Windows Update I chose "stay on windows 10 for now". Now I want to upgrade to Windows 11 - what do I do?

Download the Windows 11 Installation Assistant, a current Windows 11 ISO, Windows Media Creation Tool, or simply choose the option within Windows Update.

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In the case of the Media Creation Tool and the ISO, just download the ISO, then mount the ISO within Windows and launch setup executable.