W95/98 Error Message: DEFRAG009 Computer Does Not Have Enough Free
Memory
http://support.microsoft.com/support/kb/articles/q229/1/54.asp

Unless you want to start over, you will need a partitioning program to
fix this.  You have to establish a cluster size that is consistent with
the partition size on the new drive (see chart below).  Scandisk cannot
do this.  This is the program I use:

BootIt Next Generation is available from:
http://www.terabyteunlimited.com/  and it does partitioning, makes a
compressed image, does many other partitioning chores and is a boot
manager.  It is not quite as easy to use as Partition Magic but it is
less than half the cost and has more features.  Unlike the crippled
PMagic demo, BING is a *full function* demo you can try for free for 30
days.  The web site has a lot of support articles.

This is my standard blurb on cluster size:

DETERMINING WASTED SPACE ON HARD DRIVE.   Cluster size is the amount of
space used to store a file.  For example, if the cluster size is 16 kb,
a 1 kb file will take up 16 kb of space on a hard drive.  The 15 kb that
is lost is known as slack space.  The cluster size used by the system is
determined by the size of the partition.  Here is a chart that will give
approximate space lost for an average user.

.             Partition Size           Cluster  Typical Amount
                                              Size     of Wasted Space
Fat 32
         512 MB - 8191 MB      4K            4%
      8192 MB - 16383 MB     8K           10%
     16384 MB - 32767 MB   16K          25%
      Larger than 32768 MB    32K           40%