Hi Paul,
Well, if you like to confuse others, please post more of this.
I assume you wanted to say something like this :
I have a W8.1 boot and I only use that as Music Server PC (file server) and I use XXHighEnd on it for Tidal or maybe other stuff but explicit
not for playing music.
So that assumed ...
I don't think there will be general issues with such a setup and XXHighEnd but generally it will still be so that possibly "tomorrow" all collapses because Windows 10 is Windows 10.
Btw if all is right then XXHighEnd 2.07 will definitely prevent W10 from upgrading. So then it should be so that once you got all set up properly, it will stay fine (or as usual).
If I did not understand then let me know.
Regards,
Peter