Microsoft has completely rewritten usbser.sys
https://msdn.microsoft.com/en-us/library/windows/hardware/dn707976%28v=vs.85...
maybe there's some meaningful info
@martin
a bit off topic
(beside the comport errors) i have also a lot of problems in W10 to
get Pd, Vanilla & extended, to work as i was used to.
i cannot trace it back, but one of the things i did was to clean the
windows register manually from every entry related to Pd, Pd-extended
& PureData.
another cause seems to be the use of 'deken';
because it introduces a reference to ../Application Data, which folder
is not accessible.
but, i have to find out more about it and eventually start another thread.
rolf