Hi,
I found it. It had a prefix so I was searching for the "wrong file". Found it in the c:\programdata\ hierarchy.
Here it is. This is the one after a 1% failure. Apparently it overwrote the logfile created after the previous 98% failure. Or maybe it's an appended log.
Prior to running the jobs in this log file I had disconnected the second SSD (D: / Fricka) seen in the screenshot in the first post, since it has unallocated space.