Unallocated Disk Space

My hard drive is 250GB and 200GB reduced to only because of the unallocated space 40 + Gb.Is this normal?

You can format the unallocated partition to create an extended partition and assign a new drive letter. It will be available as an additional drive for you to save data.

Geek Squad ..... Sorry

I fully understand your question, but remember that even if u have a 250 GB hard drive it depends on the cluster size "that determines the amount of space available for this u have 250 GB. So, theoretically, with a single (primary) partition you will lose regardless of several GB does not use any information at all. The scores of increasingly larger cluster of 250 GB that you have available to use (but never the full 250).

So in short, if I understood your question, what is normal