Time Machine restore gave me huge hard drive
I was having problems with something i was trying to do and decided to start fresh and redownload everything i needed to. I started the project a day ago, so i went into time machine and restored macintosh HD to yesterday morning. everything went fine, and was back to how i remembered it, but now my hard drive is 429gb/500gb full. (Saying it is double seems about right). So clearly when i restored it kept the one i had on there when i restored. How do i delete that macintosh HD? I want to keep the one that i restored from (from yesterday), and delete the the current one i had before restoring. When i go to macintosh hd in finder it is the one from yesterday btw. Thanks in advance i need to transfer 80gb of movies to it and dont have enough room thats why i noticed it.
iMac, Mac OS X (10.7.2), 21.5 inch. October 2009 version