SYMPTOMS
When you run the
chkdsk command in fix mode, and you use the
/F or the
/R switch with this command, you may experience one of the following symptoms:
- Access control lists (ACLs) on some files may revert to their default values. This issue may occur if the volume contains more than 4,194,303 files, as in the following sample CHKDSK output:
Checking file system on J:
The type of the file system is NTFS.
Volume label is MYVOLUME.
Cleaning up minor inconsistencies on the drive.
Cleaning up 1496 unused index entries from index $SII of file 0x9.
Cleaning up 1496 unused index entries from index $SDH of file 0x9.
Cleaning up 1496 unused security descriptors.
CHKDSK discovered free space marked as allocated in the
master file table (MFT) bitmap.
Windows has made corrections to the file system.
1576209407 KB total disk space.
1514676116 KB in 4232266 files.
1523236 KB in 302192 indexes.
0 KB in bad sectors.
4671195 KB in use by the system.
65536 KB occupied by the log file.
55338860 KB available on disk.
4096 bytes in each allocation unit.
394052351 total allocation units on disk.
13834715 allocation units available on disk.
- Security descriptor information is removed from some files or folders.
In the following example, the Chkdsk log file contains an error message that indicates that two security data stream entries cross page boundaries:
Checking file system on M:
The type of the file system is NTFS.
Volume label is MyVolume.
A disk check has been scheduled.
Windows will now check the disk.
Cleaning up minor inconsistencies on the drive.
The security data stream entry at offset 0x1bfff0 with length 0x80010033
crosses the page boundary.
The security data stream entry at offset 0x4bfff0 with length 0x80010033
crosses the page boundary.
Repairing the security file record segment.
Deleting an index entry with Id 4971 from index $SII of file 9.
Deleting an index entry with Id 9614 from index $SII of file 9.
Deleting an index entry with Id 9614 from index $SDH of file 9.
Deleting an index entry with Id 4971 from index $SDH of file 9.
Replacing invalid security id with default security id for file 97.
Replacing invalid security id with default security id for file 1890.
Replacing invalid security id with default security id for file 1991.
For more information about security descriptors, search for "security descriptors"
in the Microsoft Windows 2000 Help and Support Center.
RESOLUTION
We recommend that you immediately install the appropriate service pack or hotfix on any computer that is currently vulnerable to the loss of security descriptors.
We recommend that you inventory servers and workstations in your organization and then install preventive software on any computers that are at risk. We recommend that you apply any preventive fix to new computers before you deploy the new computers for test or production use. We recommend that you inform server administrators, helpdesk administrators, and support professionals that they should install preventive fixes befpre the following operations are executed:
- chkdsk /F
- chkdsk /R
- autochk
Note IT operations guides should also install preventive fixes before these commands are executed.
Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.
To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:
Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.
Prerequisites
If volume security descriptors were deleted because of this issue, you may have to reassign user permissions to files and to folders.
Restart requirement
You must restart your computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any other hotfixes.
File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the
Time Zone tab in the Date and Time tool in Control Panel.
Date Time Version Size File name
----------------------------------------------------------
10-Dec-2003 05:17 5.0.2195.6881 579,856 Autochk.exe
10-Dec-2003 09:17 5.0.2195.6881 13,584 Chkdsk.exe
15-Nov-2001 15:27 5,149 Empty.cat
11-Mar-2004 17:59 5.0.2195.6824 17,680 Fmifs.dll
11-Mar-2004 17:59 5.0.2195.6881 67,344 Ifsutil.dll
05-Feb-2004 08:18 5.0.2195.6896 5,869,056 Sp3res.dll
08-Oct-2003 18:18 5.4.1.0 6,656 Spmsg.dll
08-Oct-2003 18:18 5.4.1.0 140,800 Spuninst.exe
11-Mar-2004 17:59 5.0.2195.6881 83,216 Ufat.dll
11-Mar-2004 17:59 5.0.2195.6881 261,392 Ulib.dll
11-Mar-2004 17:59 5.0.2195.6881 322,832 Untfs.dll
Hotfix installation information
After you apply this hotfix, you must also apply hotfix 873437.
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
873437
The CHKDSK command incorrectly identifies certain security descriptors as not valid in Windows 2000