Power and Advanced Power Management May Suspend Defrag Process (98904)

The information in this article applies to:
    Microsoft MS-DOS operating system 6.0
    Microsoft MS-DOS operating system 6.2
    Microsoft MS-DOS operating system 6.21
    Microsoft MS-DOS operating system 6.22

This article was previously published under Q98904


Although Microsoft Defragmenter (Defrag) sorts directories and files, no detectable system activity occurs while Defrag is running. The Power and Advanced Power Management (APM) utilities may assume the system is idle and therefore suspend the system. Pressing the ESC key causes an interrupt, making the system resume its activities.


Defrag does not query for currently active Power or APM services. If the system goes into an idle state while Defrag is running, you should press the ESC key. Do NOT reboot or turn the machine off; doing so can lead to data corruption.

To prevent Power from interrupting Defrag, disable Power and APM services before running Defrag. Microsoft recommends that you run your laptop computer from an AC outlet when you run Defrag.

Modification Type: Major Last Reviewed: 11/19/1999
Keywords: KB98904