Windows XP wont detect full capacity HDD...

I have a 250 gb seagate HDD installed on my computer and it is only detecting 111 gb's.

I was going to try and reformat and back it up. But I have nothing to back up the HDD with...so I'm out of luck.

The BIOS is up to date.
Windows Service Pack 2 is up to date.
disk management wont detect anymore then 111 gb's of space so I cant partition what's left.
The seagate website has no software that will fix it. Just a recommendation for the options I have already tried.

So I am completely lost to what I can do now....any help would be great.

 

...and what service pack level you have. When you right-click Computer > Properties, what does it say for your version of the operating system?

 

If you can track down a copy of Gparted (Gnome Partion Editor), you may be able to use it to adjust the partition size to the full capacity of your drive (without affecting the data already on it). I cloned my old drive to a new one, then had to use Gparted to adjust the partition size to match the drive.

Partition Magic should work well also, if you want a pay solution.