Sxgdsenu.exe
(???)
MIDI driver for sound cards based on the Yamaha XG chipset.
Recommendation :
As the XG chipset is an old chipset, we have not had the opportunity to verify what this background task really does. As a result the only recommendation we can make is that you leave it alone. Or, if this task appears on your PC and you are prepared to experiment, you could try disabling it with Startup Manager and see if you suffer sound problems.