Service Pack Removal Restores Compressed Files (164461)
The information in this article applies to:
- Microsoft Windows NT Workstation 4.0
- Microsoft Windows NT Workstation 4.0 SP2
- Microsoft Windows NT Server 4.0
- Microsoft Windows NT Server 4.0 SP2
This article was previously published under Q164461 SYMPTOMS
Several Windows NT system files are compressed on an NTFS volume after
removing Windows NT 4.0 Service Pack 2, and many of the files cannot be
uncompressed.
CAUSE
On an NTFS partition, the uninstall directory created by Windows NT 4.0
Service Pack 2 is compressed, to save disk space. If you use Update.exe to
remove the service pack, the original Windows NT files are restored with
the compressed bit still set, regardless of the original state of these
files before removing the service pack.
Several of these files are in use by the system, and cannot be uncompressed
while the operating system is running.
RESOLUTION
If you want the system files modified by Windows NT 4.0 Service Pack 2 to
be uncompressed, you can manually decompress many of them by removing the
Compressed attribute in the Windows NT Explorer properties dialog box.
To uncompress the files that are currently in use by the system, you must
either perform the uncompression from a parallel installation of Windows
NT, or uncompress the %SystemRoot%\$NtServicePackUninstall$ hidden
directory before removing Windows NT 4.0 Service Pack 2.
STATUS
Microsoft has confirmed this to be a problem in Windows NT version 4.0
Service Pack 2. We are researching this problem and will post new
information here in the Microsoft Knowledge Base as it becomes available.
| Modification Type: | Major | Last Reviewed: | 5/13/2003 |
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| Keywords: | kbbug kbsetup KB164461 |
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