I've been running Mac OS X and Windows 7 via Bootcamp. However, I'm going to remove my Bootcamp partition and instead install Parallels Desktop. Before installing Parallels, is it best to first erase (reformat) the entire hard drive to remove the partition and then reinstall Mac OS X and apps, or is it sufficient to use Bootcamp to simply remove the partition? There isn't any sensitive data that needs to be removed. I would simply like to be sure that Parallels installs correctly and so I would like to remove the partition in the best way possible. Thanks for your help!