STOP C000021a 0x00000080 Message Upgrading to Windows NT 4.0 on Compaq Computer

ID: Q246782

The information in this article applies to:
  • Microsoft Windows NT Server versions 3.51, 4.0
  • Microsoft Windows NT Workstation versions 3.51, 4.0

SYMPTOMS

When you upgrade your Compaq computer from Microsoft Windows NT 3.51 to Microsoft Windows NT 4.0, you may receive the following error message after you install the Compaq Software Support Disk (SSD) and Service Pack 3 for Windows NT 4.0:

STOP:C000021a 0x00000080


CAUSE

This cause is unknown.


RESOLUTION

To resolve this behavior, follow these steps:

  1. Install a parallel copy of Windows NT 4.0 on the computer that previously ran Windows NT 3.51.


  2. Install the Compaq SSD and Service Pack 3 for Windows NT 4.0 to the folder that contains the parallel installation.


  3. Copy all files from the original \Winnt35\System32 folder to a shared network drive.


  4. Delete all files in the \Winnt35\System32 folder on the computer.


  5. Copy all files in the \Winnt\System32 folder of the parallel installation to the original \Winnt35\System32 folder.


  6. Copy the backup files from the network shared drive to the original \Winnt35\System32 folder.


  7. At the prompt about overwriting existing files, click No To All.


  8. Restart to the original installation.


The third-party products discussed in this article are manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.

Additional query words:

Keywords :
Version : winnt:3.51,4.0
Platform : winnt
Issue type : kbprb


Last Reviewed: November 23, 1999
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