DOCUMENT:Q175544  09-AUG-2001  [winnt]
TITLE   :Windows NT Setup for 3.51 Fails When Deleting User Profiles
PRODUCT :Microsoft Windows NT
PROD/VER:winnt:3.51
OPER/SYS:
KEYWORDS:

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-------------------------------------------------------------------------------
The information in this article applies to:

 - Microsoft Windows NT Workstation version 3.51 
 - Microsoft Windows NT Server version 3.51 
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SYMPTOMS
========

Selecting Options | Delete user profiles..., from Windows NT Setup for Windows
NT 3.51 results in the following error message:

   No user profiles were found on this machine.

-Or-

The following Dr. Watson error message is displayed:

   An application error has occurred and an application
   error log is being generated.
   Setup.exe
   Exception: access violation (0xc0000005), Address: 0x77f52edb

CAUSE
=====

The stack trace shows the access violation occurs in GetUserAccounts.

The GetUserAccounts function enumerates the user profile summary information from
the following registry key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT
\CurrentVersion\ProfileList

NOTE: The above registry key is one path; it has been wrapped for readability.

The receive buffer for the enumeration is set to a fixed length. For the case of
approximately nine or more user profiles, the fixed buffer gets overwritten
during enumeration, which results in the Dr. Watson access violation.

WORKAROUND
==========

To work around this problem, delete the user profile(s) manually using the
following procedure:

WARNING: Using Registry Editor incorrectly can cause serious problems that may
require you to reinstall your operating system. Microsoft cannot guarantee that
problems resulting from the incorrect use of Registry Editor can be solved. Use
Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys And
Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete
Information in the Registry" and "Edit Registry Data" Help topics in
Regedt32.exe. Note that you should back up the registry before you edit it.

1. Start Registry Editor (Regedt32.exe), and select the following subkey:

   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsNT
   \CurrentVersion\ProfileList

   NOTE: The above registry key is one path; it has been wrapped for readability.

2. Click Save Key from the Registry menu to create a backup copy of this parent
   key.

3. Within this key, select the subkey that represents the user profile that you
   wish to delete.

   You can typically determine the user name for the profile subkey by referring
   to the ProfileImagePath value of that subkey. Make a note of that profile's
   ProfileImagePath value, because this information is used in a later step to
   delete the actual user profile.

4. Delete the user profile subkey.

5. From a command prompt, start File Manager. Go to the path referenced in the
   ProfileImagePath value of the user profile subkey just deleted, and delete
   the file referenced at the end of the ProfileImagePath value.

RESOLUTION
==========

Obtain the updated Setupdll.dll from Microsoft Product Support Services.

STATUS
======

Microsoft has confirmed this to be a problem in Windows NT version 3.51.

A supported fix is now available, but has not been fully regression tested and
should be applied only to systems experiencing this specific problem. Unless you
are severely impacted by this specific problem, Microsoft recommends that you
wait for the next Service Pack that contains this fix. Contact Microsoft
Technical Support for more information.


Additional query words:

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Keywords          :  
Technology        : kbWinNTsearch kbWinNTWsearch kbWinNT351search kbWinNTW351search kbWinNTW351 kbWinNTSsearch kbWinNTS351 kbWinNTS351search
Version           : winnt:3.51
Hardware          : x86
Issue type        : kbbug
Solution Type     : kbfix

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