Error 0x87C51001

Value: -2017128447 | 0x87C51001 | 2277838849

What does it mean ?

UTC_E_TOGGLE_TRACE_STARTED  
Toggle (alternative) trace started
Value: 4097 | 0x1001 | 0b0001000000000001

Where does it come from ?

FACILITY_UTC  
Diagnostic Tracking (Service utcsvc "DiagTrack")
Value: 1989 | 0x7C5 | 0b11111000101

Other Errors for FACILITY_UTC