In order to watch YouTube my computer is asking me to switch on java script,how do I do this please

First we need to know which browser you are using. I can help if you are using Firefox or IE.

First we need to know which browser you are using. I can help if you are using Firefox or IE.

Hi I'm on IE

You need Flash, not Java Script: Adobe - Flash Player (http://www.adobe.com/software/flash/about/)