Given that Windows 8.1 no longer receives security updates , it is best used on a machine that is not connected to the internet.
Windows 8.1 "Lite" refers to modified, stripped-down versions of the operating system hosted on Archive.org. These versions are designed by enthusiasts to run on older hardware by removing non-essential services, telemetry, and pre-installed apps. Key Lite Versions on Archive.org Windows 8.1 Lite Archive.org