Shoutbox

In Windows, go in Control Panel\Administrative Tools\Computer Management. There, select Storage\Disk Management (in the list on the left). It will display your hard disk as seen by Windows physically.

In the Disk 0 line, if you only see one partition using the complete space, then it means you should either update your Windows or your bios. If you see several blocks in the line, it probably means that you have unpartitioned disk space. In that case, either create a partition in the remaining space or use something like Partition Magic to increase the size of the current partition (and if you do, make make sure you backup your important data first on a cdr or something equivalent).