Courtesy of David NieldGoogle provides a certified list of models that ChromeOS Flex will work on. It’s extensive, but even if your laptop isn't listed, it's worth giving ChromeOS Flex a go, because it may function well enough. You should avoid ChromeOS Flex if your laptop has a “major issues expected” or “decertified” label next to it on the list. (It doesn't have to be the one you're installing ChromeOS Flex on.) When prompted to identify your Chromebook, click Select a model from a list, then choose Google ChromeOS Flex as the manufacturer and ChromeOS Flex as the product.