B4 you throw in the towel....

It sounds like Choice is not working. Open a command prompt, type choice /? and press enter. It should display the choice help message with all the options available.

If that works then open the .bat file and delete the very first line :@ECHO OFF. Now go to the last line and change the word Exit to Pause and then save the .bat file. Now double click the .bat file to run it.

This edit of the .bat file will allow you to see what it is doing.