I'm wondering where I could change the settings of opening html directly to a browser. I have an HTML file but when I double clicked on it, it will open first the notepad++. I think I must have clicked on something. I'm using Windows 7.
Yes, you clicked on something like "Associate HTML files" with Notepad++ while you installed it. You need to right click on HTML file, Open With -> Chose default program... and select your browser.