Windows IIS8 not starting website

I have a windows 7 laptop and I want to set up IIS8, php, mysql to run in a development environment, but I am having trouble.

I opened IIS8, and when I click on my site "Default website" and click start, it gives an error saying "The process cannot access the file because it is being used by another process. (Exception from HRESULT: 0x80070020)

Does anyone know whats going on?

Thanks

Check if the port is grabbed by another process. Check https://support2.microsoft.com/kb/973094