NeoLoad stores the logs in a separate folder for each NeoLoad version. The log files are stored in a directory in the user profile. The user profile used is the one who launched the program.
You may quickly access the logs directory in NeoLoad with the Help > Open log directory menu item, or with the Open log directory item in the menu accessed through the Agent icon in the notification area.
Examples of log file locations are:
%AppData%\Neotys\NeoLoad\v7.9\logs
$HOME/.neotys/neoload/v7.9/logs
For more information, see NeoLoad files.