I'm having some problem with wamp.

I can't seem to have an folder called icons. This is where I keep all my icons used on the site. The problem is all my icons are not showing up. If I rename it to something else it works. But I can't seem to have a folder called icons for some reason. I've tried deleting it and made a new folder called icons but it just wont let me.

Forbidden
You don't have permission to access /icons/ on this server.

Why do I get this permission access error?

I am using Windows 7.