Disk Defragmenter has been improved to rearrange program files that are frequently used to a hard disk region optimized for program start. The aggravating "Drive contents changed...restarting." message will still frequently appear in this version. If it gets stuck on the same area too many times, it will ask the user if it should keep trying or give up. However, the Disk Defragmenter from Windows Me does not have this problem and will function on Windows 98 if the user copies it over.