File Size:

Windows™ is contained on 7 5.25" diskettes or X 3.5"
diskettes. This means that if all of the files were to be
copied onto the hard disk and decompressed they would
occupy approximately 16MB! In a network installation this
much is usually installed to allow for the various
configurations of the workstations.

In a default Windows™ installation only 13MB of data is
put on the hard disk. Additional files (occupying
additional space) is added with each new program, utility,
configuration change, or demo that is put on the hard disk.

The total amount of space on the hard disk containing the
Windows™  directory can easily grow to large proportions
as you can see. This is referring only to the Windows™
directory and its subdirectories. When a new program,
utility, configuration change, or demo is put on the hard
disk it is normally placed in it's own directory,but
additional control and features that work with this new
program are added to the Windows™ directory too.

It is these ORPHAN files that are left behind when a
program is removed from the hard disk.