Trace ODBC commands: What is the registry path for TraceSQLMode and where is SQLOUT.TXT?
I managed to dig up the path from a comment on this page. On my machine, with Access 2016, the TraceSQLMode registry key is found here:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\ClickToRun\REGISTRY\MACHINE\Software\Microsoft\Office\16.0\Access Connectivity Engine\Engines\ODBC\TraceSQLMode

I found something on this page that mentioned that the sqlout.txt file is stored in the Default database folder as indicated in MS Access Tools-&gt; Options-&gt; General-&gt; Default database folder. In my case, it is located here:
C:\Users\[my user name]\Documents\sqlout.txt