And besides the computer, you also bundled all your manuals and software media together and gave them to him too? Describe the media you have for this Windows XP system?
You also informed this individual that if it becomes necessary to reinstall Windows for whatever reason, they should ensure everything is as it was afterwards?
My question is that, is there a sound program that I need to download or can this be fixed with a few clicks on the computer
This question depends on what you've got to do things with, want to do sound with and what peripheral you have to make sound on this system, and the necessary software to make this happen -- all which we do not know. Do you?
Do you feel qualified?