Microsoft KB Archive/170572

From BetaArchive Wiki
Knowledge Base

Unable to Format a 1.44-MB Disk on an LS-120 After SP3

Article ID: 170572

Article Last Modified on 11/1/2006


  • Microsoft Windows NT Server 4.0, Terminal Server Edition
  • Microsoft Windows NT Workstation 4.0 Developer Edition
  • Microsoft Windows NT Server 4.0 Standard Edition

This article was previously published under Q170572


After installing Service Pack 3 and when using an LS-120 removable media drive that also reads/writes 1.44-MB disks, you are unable to format a 1.44-MB disk. You can still write to an already formatted disk or to LS- 120 media.


Perform the following steps to work around this problem:

  1. Rename %Systemroot%\system32\drivers\Atapi.sys to
  2. Copy the Atapi.sys from Service Pack 2 to the following directory:

          %Systemroot%\system32\drivers directory.
  3. Shut down and restart the system.

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

152734 How to Obtain the Latest Windows NT 4.0 Service Pack


Microsoft has confirmed this to be a problem in Windows NT version 4.0 Service Pack 3. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.

Keywords: kbhotfixserver kbqfe kb3rdparty kbbug kbfix kbhardware KB170572