The next icon you see when you open My Computer is the
hard drive icon. (The number you see and how they are
named varies depending on the computer you are using.)
The hard drive is the primary storage location on the
computer. The hard drive serves as a storage space for
all of your files, old email, and all programs (including
the operating system). Hard drives are generally measured
in terms of gigabytes. In general a hard drive icon will
appear as in the image below. Like all other icons, double
clicking on it opens the hard drive icon.
Checking Hard Drive Size and Space
To check the size and space available on the hard drive
double-click on its icon and view the details section.
In Windows Vista the space available on the drive is located on the bottom of the window.