Why does the Windows Task Scheduler bat file only function when there's a call to echo?

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It is possible that the Windows Task Scheduler bat file requires an echo statement to properly execute because the echo statement forces the output to be displayed in the console window. This can help to ensure that the batch file is executing as expected and can also be useful for troubleshooting any issues that may arise.

Additionally, echoing output to the console window can be helpful for logging and monitoring purposes, as it provides visibility into the execution of the batch file and any output or errors that may occur.

Without an echo statement, the batch file may still execute, but there may be issues with diagnosing and troubleshooting any problems that occur. Therefore, it is generally recommended to include echo statements in batch files that are scheduled to run via the Windows Task Scheduler.