Big problem with a hard drive!

I just got around to installing the 250GB drive I bought a few days ago, and there seems to be a little issue with it.
It is a western digital drive it shows up in the device manager as WDC WD2500JB-00RE0
Now when I go onto it, it is short a couple hundred gb.
To be exact, it shows that it is only 31.4 GB.
I tried to reformat it, because I thought that maybe it was in FAT32 format, but that didn't help ether. It is still saying it is only 31.4gb. (It is formatted as NTFS)
Has anyone ever encountered a problem like this before? Because I have never heard of anything like this
I hope there is a simple fix. Maybe I overlooked somthing simple when I installed it maybe?
Thanks for looking!
It is a western digital drive it shows up in the device manager as WDC WD2500JB-00RE0
Now when I go onto it, it is short a couple hundred gb.
To be exact, it shows that it is only 31.4 GB.
I tried to reformat it, because I thought that maybe it was in FAT32 format, but that didn't help ether. It is still saying it is only 31.4gb. (It is formatted as NTFS)
Has anyone ever encountered a problem like this before? Because I have never heard of anything like this

I hope there is a simple fix. Maybe I overlooked somthing simple when I installed it maybe?
Thanks for looking!