Linux dual boot

So, I need to dual boot my computer into windows. I have been using only zorin for a while but now I need to dual boot for school. I purchased a new drive, so I don't have to partition my current drive but it is larger than my current drive. Is there an easy way to move zorin onto the new drive and have windows on my current one? Or will I just have to flash zorin onto the new one and then reimage windows onto my current one?