500GB HDD seen as 250GBHD

Hi,

 

I'm not sure how to start a new thread, and I don't want to reply to an existing one.  So, I thought I'd give you a try.

 

I bought Norton Ghost 15 last week to clone my existing 250GB HDD to a new 500GB HDD.  It was successful.  However, my BIOS sees the new HDD as the same one that I replace, and with the same amount of storage space (250GB).  In addition, that new OS HDD (500GB) works fine, but has a second partition on it.  (Unallocated)  As you can see from the attached image, I have a second partition and would like to either delete it or fix it.  Hopefully this will show up on the BIOS.  Can you help?

 

Thanks.

 

(Edited subject for clarification)