Is it crashing before you even load media into it? If not, let us know what type of camcorder your video is coming from and how you're getting it into your computer.
Also, ensure you have the latest Windows Updates (manually go to Windows Update and add even the optional updates) and the latest version of Quicktime. Then uninstall and reinstall the software.
I'm assuming that 1 terrabyte drive is your C drive and that it was properly set up at the factory.
If the suggestions in the link above do not help, this ARTICLE might yield some clues as to what is happening, when the program crashes.
Also, even if your computer is brand new, the chances are great that both your Audio and Video drivers are out of date, and could well be responsible for the program crashes and hangs. I'd update both. Because PrE accesses and uses both of these drivers more than almost any other program, having them updated is highly important. Other apps. will often run fine, but then an NLE will crash. This is very common.