https://wccftech.com/windows-11-minimum-requirements-quick-recap/

Windows 11 is out for free for all eligible Windows 10 devices. However, with this release, Microsoft has updated the minimum system requirements. For example, the new operating system can only run on 64-bit CPUs. While the company has dropped a useful little app to help you confirm eligibility, here is the complete list of Windows 11 minimum requirements:

You can go to Settings > System > About, or search “System Information” in Windows and look under “System Type" to confirm your device's specs. If you intend on doing a clean installation of Windows 11, you would also need a drive of at least 8GB to create a bootable disc.