On my Windows 10 system, the System process is continuously clocking ~12% CPU utilization (1 logical processor).
Process explorer shows that
ntoskrnl.exe!RtlSidHashInitialize+0x1450
thread is consuming all of it.
I read that it could be a driver issue, but I have no clue about how to nail it down to particular driver. Any clues on how to diagnose this further?