Disk epac

Question

I have reinstalled my windoe XP in my compaq nx7010 laptop.

While reintalling all the FILES has been deleated which luckily i have saved in external hard drive.after reinstalling the window my computer is showing that its memory of 50 Gb taken and i have only 5 gb left over to use.But there is no folder which shows that there is momory inside and i am finding a cahallage to find the solution.PLEASE HELP.

VISHAL FROM DUBAI