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Q160043: Err Msg: Error Defragmenting Drive <X>. Windows Could Not…

Article: Q160043
Product(s): Microsoft Windows 95.x Retail Product
Version(s): WINDOWS:95; Win2000:95
Operating System(s): 
Keyword(s): kbenv kberrmsg kbtool scandisk win95 defrag kbDefrag kbScanDisk
Last Modified: 01-AUG-2001

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The information in this article applies to:

- Microsoft Windows 95 
- Microsoft Plus! for Windows 95 
- Microsoft Windows 98 
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SYMPTOMS
========

When you run Disk Defragmenter (Defrag.exe), you may receive the following error
message:

  Error Defragmenting Drive <drive>. Windows could not access part of the
  drive. Click Help and carry out the instructions for running ScanDisk.
  IMPORTANT: To fix this problem, you must run ScanDisk and choose the Thorough
  option.
  ID No: DEFRAG005

Note that the "ID No: DEFRAG005" portion of the error message may be replaced by
"ID No: DEFRAG006."

CAUSE
=====

This error occurs when Disk Defragmenter is unable to read from or write to one
or more bad sectors on the hard disk. The DEFRAG005 error message is displayed
when Disk Defragmenter is unable to write to a sector. The DEFRAG006 error
message is displayed when Disk Defragmenter is unable to read from a sector.

RESOLUTION
==========

Before you attempt to work around this problem, you should first make a backup
copy of any important data on your hard disk. After doing so, run ScanDisk
(Scandskw.exe) and perform a thorough test on the hard disk. To do so, follow
these steps:

1. Click the Start button, point to Programs, point to Accessories, point to
  System Tools, and then click ScanDisk.

2. Click the hard disk referenced in the error message, and then click Thorough
  in the Type Of Test area.

3. Click Options, verify that System And Data Areas is selected, and then click
  OK.

4. Click Start to begin the test.

If ScanDisk does not find any bad sectors, or if running ScanDisk does not
correct the problem, configure ScanDisk to detect disk timeouts and check each
cluster five times while performing a surface scan. To do so, follow these
steps:

1. Use any text editor (such as Notepad) to open the Scandisk.ini file in the
  Windows\Command folder.

2. Create an [Environment] section in the file, if the section does not already
  exist, and then add the following lines to the section:

  " ScanTimeOut=On
  NumPasses=5 " (without the quotation marks)

  Note that the "ScanTimeOut=" and "NumPasses=" lines may already exist, but
  with different values.

3. Save and then close the Scandisk.ini file.

4. Click the Start button, click Shut Down, click "Restart the computer in
  MS-DOS mode," and then click Yes.

5. Type the following line and then press ENTER to run ScanDisk

  " scandisk <drive>: " (without the quotation marks)

  where <drive> is the drive letter of the hard disk you want to check.
  Note that you should run a surface scan when ScanDisk prompts you to do so,
  repair any errors that ScanDisk finds, and view and save the log file that
  ScanDisk creates.

6. When ScanDisk is finished, type "exit" (without the quotation marks) and then
  press ENTER to return to Windows 95.

7. Run Disk Defragmenter again.

If you still receive the above error message, run Disk Defragmenter to
consolidate free space only, then defragment files only, and then perform a full
defragmentation (both files and free space). To do this, follow these steps:

1. Click Start, point to Programs, point to Accessories, point to System Tools,
  and then click Disk Defragmenter.

2. Click the hard disk referenced in the error message, and then click OK.

3. Click Advanced, click Consolidate Free Space Only, and then click OK.

4. Click No when you are prompted to quit Disk Defragmenter.

5. Click the hard disk referenced in the error message, and then click OK.

6. Click Advanced, click Defragment Files Only, and then click OK.

7. Click No when you are prompted to quit Disk Defragmenter.

8. Click the hard disk referenced in the error message, and then click OK.

9. Click Advanced, click "Full defragmentation (both files and free space)", and
  then click OK.

10. Click Yes when you are prompted to exit Disk Defragmenter.

If ScanDisk does not find any bad sectors, or if running ScanDisk does not
correct the problem, contact the manufacturer of your computer or hard disk to
inquire about additional workarounds that may correct the problem.

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

Many hard disks have sectors that are unusable. If the sectors have been marked
as bad by ScanDisk or another disk tool, Disk Defragmenter displays the sector
as a white box with a red line through it. This indicates that the cluster has
been marked as bad and cannot be used to store data.

If the disk tool you use is unable to detect bad sectors on your hard disk, or if
you do not run a disk tool on a regular basis, unusable sectors that are not
marked as bad may exist on the disk. When this occurs, you may not realize that
the bad sectors exist until Windows 95 attempts to store data in them.
Therefore, it is possible for bad sectors to appear while you are using the
drive normally. If bad sectors begin to appear on a regular basis, your hard
disk may need to be repaired or replaced.

Note that you may be able to prevent the error message from being displayed by
deleting some files on your hard disk, but doing so does not fix the problem
that is causing the error message to appear. Disk Defragmenter does not read
from unused sectors while defragmenting a drive. Therefore, if an unusable
sector that does not contain any data exists on your hard disk, the problem
described in this article may not occur.

Additional query words: osr1 osr2

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Keywords          : kbenv kberrmsg kbtool scandisk win95 defrag kbDefrag kbScanDisk 
Technology        : kbWin95search kbWin98search kbGamesSearch kbPlusSearch kbZNotKeyword3 kbWin98 kbPlus95
Version           : WINDOWS:95; Win2000:95

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