BootCamp on Mac

I just purchased a 500GB hard drive and had my previous drive cloned over to my Macbook. BootCamp was copied over as a folder. To get BootCamp running again on the new drive do I need to go through the hassle of setting it up again or can I just create a Windows partition and copy the folder over to that drive? Previous partition was 30GB as FAT32 to complicate things.