installation cannot be completed

Hi all I get this warning every time I try to re-install WordPress

The installation can not be completed:

– You chose to install in the main directory of the domain mystyle-web.com, but there are conflicting filenames, therefore we can not proceed. Following filenames already exist in the main directory of the domain mystyle-web.com (path=”/home/mystylew/public_html/”).You must manually remove these files before proceeding with auto-installation:
wp-admin
wp-content
wp-includes

And yes I have tried to remove the files but it doesn’t stay removed what would I be doing wrong????????