Also create a text file as follows, name the file robots.txt, and upload the file to the home page folder.
# Prevents search engine robots from adding these directories and files
User-agent: *
Disallow: /folder1/
Disallow: /folder2/
Disallow: page1.htm
Disallow: page2.htm
Add as many folder names and file names as you want. Note that not all search engine spiders respect the robots.txt file, but it may help.