Hello organsRgreat,
As long as they meet the Hauptwerk prerequisites ( https://www.hauptwerk.com/clientuploads/documentation/PDF/HauptwerkPrerequisites.pdf ), with a supported version of Windows (N.B. not Windows RT), then I'd expect them to be able to run Hauptwerk, at least to some extent.
I think you'd find the performance of computer's like that disappointing (by today's standards), though, especially with regard to polyphony and loading speeds ( http://www.howtogeek.com/196541/emmc-vs.-ssd-not-all-solid-state-storage-is-equal/ ). I also wonder whether they might struggle to run current versions of Windows for reliable real-time low-latency audio (since Windows will be doing things in the background as well). Personally, I wouldn't consider them.