Help & Support
How do I disable the built-in defragmenter in Vista and Windows 7?
Windows Vista and Windows 7 both have a built-in defragmenter which is scheduled to run automatically. You can run both My Defragmenter and the built-in Windows defragmenter if you wish or only one or the other.
To turn off the built-in Windows defragmenter, go to the Start menu and type "defrag" into the search box, and open Disk Defragmenter. Inside Disk Dragmenter, click on "Configure Schedule" and uncheck "Run on a Schedule."