Ok, i'm sorry that didn't work. We will look into the issue and/or turn the message into a warning (so that it proceeds anyway if someone wants).

In the meantime, there's a work around.  Create a new file in your C:\\ drive, named ProSeriesPrereqBypass.txt.    It doesn't have to have anything in it... Just the existence of that file will cause the installer to skip this check.  Then after you create the file, just run the installer.