Install Java first: Download Java software from Sun Microsystems & choose ONLY the OFFLINE java installer. It's about 13 or 15 MB in size download. Once downloading the installer, then install (all files within installer, no installing over the internet.)

However, I would recommend before you do that to defragment your drives & make as much space available as possible. You should have a minimum of 250 MB ram also.

BTW are you sure you are installing Pro? How large is the installer file?