During the operating system deployment process, several logs are created. Depending on what portion of setup phase we are talking about, the location of the logs will move around to different paths and drive letters.
Starting point for troubleshooting basic operating system deployment errors is usually the main
setupact.log file. This log keeps track of everything that happens during the deployment process.
setuperr.log only contains error entries from the main log file. Very often you will need the information lines before and after the error occurred in order to determine the root cause. So,
setuperr.log should be seen as an indicator and cannot be used standalone. If its file size is larger than 0 bytes, take a look at