Proprietary software for 1215B, e.g. Windows, is working just fine with Windows 10, even though it was originally released with Windows 7.
So we are talking about Windows 7, Windows 8, Windows 8.1, and several Windows 10 releases, all supporting the original Windows 7 drivers for Asus 1215B.
I have been a Linux guinea pig since Slackware 2.0 came on Linux Unleashed book, eventually one gets tired of the Linux Desktop meme.
Linux was anyway just the way I got cheap UNIX clone at home during my degree, professionally I have spent more years using commercial UNIXes.
Nowadays any POSIX clone will do the job, or as alternative we stuck the Linux kernel into a VM.