DOCUMENT:Q128960  01-AUG-2001  [win95x]
TITLE   :Disk Defragmenter Err Msg: Error Defragmenting Drive C
PRODUCT :Microsoft Windows 95.x Retail Product
PROD/VER:95
OPER/SYS:
KEYWORDS:diskmem win95 defrag kbDefrag kbDiskMemory

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The information in this article applies to:

 - Microsoft Windows 95 
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SYMPTOMS
========

When you run the Windows 95 Disk Defragmenter tool on drive C, you may receive
the following error message:

   Error Defragmenting Drive C

   Windows cannot defragment this drive now because it has been locked by a disk
   utility. Quit any utilities that may have locked this drive, and then try
   defragmenting the drive again.

CAUSE
=====

This error can occur if all the following conditions are met:

 - Drive C is attached to an IDE controller.

 - There is an Adaptec AHA-1542C SCSI controller with another hard disk attached
   to it in your computer.

 - The ID for the SCSI hard disk is set to 0 (zero).

RESOLUTION
==========

To correct this problem, set the ID of the SCSI hard disk to anything except 0.
For information about how to change the ID setting, please refer to the Adaptec
controller documentation.

MORE INFORMATION
================

Note that this error can also occur if the boot sector of the hard disk is
infected with a computer virus.

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Keywords          : diskmem win95 defrag kbDefrag kbDiskMemory 
Technology        : kbWin95search kbZNotKeyword3
Version           : 95

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