Run Windows 11 previews on a virtual machine on Windows 10

[Windows Central]

You can safely test previews of Windows 11 using a virtual machine, and here's how on Windows 10.
Although you can already download the pre-release version of Windows 11, upgrading your primary machine is not recommended since this new version is not yet ready. It contains bugs and issues that may negatively affect your experience. In some cases, it may even cause data loss.

Full story from the WindowsCentral blog...