An operating system is the basic software that allows your computer to startup and provide core features such as the ability to find files on your hard drive.

A web browser is used to visit web sites. If you're using Windows and clicking the Internet icon then you're using Internet Explorer.

Specify the type of the request.

Please describe your request. If you are submitting a problem report please include details about the steps you took to reveal the problem. Simply writing "it doesn't work" is not enough for us to understand what needs to be fixed. Different people have different concepts of how things should and should not work.