Replaced a 320 gb Hard drive with a 500 gb hard drive and in the bios it shows 500 gb. I restored this drive from an image disk of the old drive and i'm using windows 7. In windows 7 it shows the the size of the drive is 320 and not 500. How do I correct it?
A disk image copies the contents of the partition exactly - if it used to be 320GB then it will still be 320GB.
What you need to do to take advantage of the extra space is to go into Disk Management (Start -> right-click "Computer" and select "Properties" -> click "Disk Management" in the left pane) and extend the partition to fill the rest of the drive.