What's the HD?


I cannot defrag my computer. Each time I try it gets stuck on checking drive for errors....and stays there forever. I even left it overnight once. It's been like this for about a month now.


This question was answered on May 20, 2003. Much of the information contained herein may have changed since posting.

Your computer does not have enough free memory to defrag the drive.

This issue can occur if you are running Windows on a hard disk that is larger than 8 gigabytes (GB) in size and has a cluster size less than 8 kilobytes (KB) This configuration may be created if you use a third-party disk tool to create a partition on a hard disk that is larger than 8 (GB) in size and has a cluster size less than 8 KB.

To resolve this issue, contact the manufacturer of the third-party hard disk tool to inquire about a possible update to the software that resolves this issue.

The standard FAT32 cluster size of 4,096 bytes only applies for hard disks smaller than 8 GB The third-party hard disk tool may change the cluster size to 4,096 bytes per allocation unit.

The default cluster sizes are listed in the following table Hard disk size Cluster size


512 MB to 8 GB 4 KB

8 GB to 16 GB 8 KB

16 GB to 32 GB 16 KB

32 GB and larger 32 KB

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Posted by Student of Katharine Gibbs School - New York on May 20, 2003