|That conflicts with what jam posted above. Are you POSITIVE the FULL capacity is seen. Post the information. Hit the pause key to freeze the screen. Any key to restart.|
If verified then I suggest that you just partition it by creating a Primary partition of 30 or 40GB. Do not create any additional partitions at that time. Do not have any external hardware like flash or USB drives, printer, scanners, etc connected.
After installing and updating Windows you can deal with the remaining unallocated space from within Disk Management. Look at the link below for suggestions on partitioning.