If you want to install Insider Preview builds of Windows 11, you have at least two options, and in this guide, we’ll show you how for devices already running Windows 11 or even Windows 10. Alternatively, you can install or upgrade a device to the latest Windows 11 Insider Preview build by downloading the ISO file.To install a Windows 11 Insider Preview on Windows 10, open Settings > Update & Security > Windows Insider Program, click “Get started,” link your account, select the “Dev” or “Canary” channel, restart, and check for updates to download the latest build.To enroll and install Windows 11 preview builds, open Settings > Windows Update > Windows Insider Program, click “Get started,” link your account, select the “Canary,” “Dev,” “Beta,” or “Release Preview” channel, restart, and check for updates to download the latest Insider Preview build.