well didn't uninstall non plug and play driver; it appears to be linked to MPKSLB ; which searching on the net tells me has to do with MSE.
which i uninstalled awhile ago; apparently something to do with updates, & not removing older definitions, causing error;
i set start up to on demand; & has appeared to have stopped HFYSRMM starting in services,
also have lost yellow icon in device manager, so no code 24 error;
will monitor over next week or so & check if error or service comes back