Google ChromeOS Flex lets users install operating system on old Windows PCs
Google has released an official method for installing ChromeOS Flex on existing hardware that previously ran Windows.

System requirements and limits
The software requires an Intel or AMD CPU along with at least 4GB of RAM. Devices using processors from 2012 or earlier do not support the newer versions of the operating system. The installation process typically takes about one hour to complete.
Benefits for aging computers
ChromeOS requires fewer resources than Windows and usually provides a smoother experience on lower-end machines. This approach allows users to extend the life of a computer that is no longer receiving security updates. The alternative operating system makes older hardware useful again without needing to buy new equipment.
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