As you suggested I did un-install and then reinstall the flash player with no luck again.
Let me clarify that my intention is to learn a bit while solving my problem by finding the answers to these questions:
1. why can I hear flash player on the same laptop as a STANDARD use but not an a ADMIN user?
When we create a new user , how does it get created? How the system clone it? the confusing part it when I downgrade/upgrade SAME USER to different status (Standard vs. ADMIN), the user would or would not be able to hear musics played on flash player such as you tube.
2. About the sound device, I really wonder if it is possible to make the system recognize the flash player? the way it can recognize VLC.
Let me be clear, If you read my posts carefully already, which I would like to thank you in advance, and then you thought you knew the answer, please share your experience and expertise with me, otherwise, I would not like you to waste your time and mine typing the answers I already mentioned in my post I did it multiple times.
I might sound rude, however, I guess its only a fair request.
I thank all those who went through my posts for their time.