There is an entry at that time:
Faulting application name: Plex Media Server.exe, version: 1.12.1.4885, time stamp: 0x5aac03a1
Faulting module name: ntdll.dll, version: 10.0.16299.248, time stamp: 0x3a21d961
Exception code: 0xc0000374
Fault offset: 0x000da879
Faulting process id: 0x3134
Faulting application start time: 0x01d3c8a10831ce5d
Faulting application path: C:\Program Files (x86)\Plex\Plex Media Server\Plex Media Server.exe
Faulting module path: C:\WINDOWS\SYSTEM32
tdll.dll
Report Id: e20b1c1b-a7e4-4486-b1fd-7879625a3328
Faulting package full name:
Faulting package-relative application ID:
I have turned off Hardware Acceleration - though this has been on since well before the errors started (the day of the update at the beginning of March).
I have just reviewed the Event logs in a bit more detail, seems I was not quite right on the timeline, the errors started 2018-02-19, here is what a filtered list looks like.
Only one of those is another Application.
