DOCUMENT:Q83482  02-OCT-1999  [win95x]
TITLE   :Windows 3.0 Files May Cause Windows 3.1 Boot Errors
PRODUCT :Microsoft Windows 95.x Retail Product
PROD/VER:WINDOWS:3.0,3.0a,3.1,3.11
OPER/SYS:
KEYWORDS:

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The information in this article applies to:

 - Microsoft Windows versions 3.0, 3.0a, 3.1, 3.11 
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SUMMARY
=======

If the Windows 3.0 version of KRNL386.EXE and/or DOSX.EXE are present in the
Windows directory after you upgrade to the Microsoft Windows operating system
version 3.1, the following error messages may occur.

Error:

   Enhanced Mode Error Message

   KRNL386: Unable to enter Protected Mode

CAUSE:

The KRNL386.EXE (Windows 3.0) file is in the Windows 3.1 directory.

Error:

   STANDARD MODE Error Messages

   Standard Mode: Fault outside of MS-DOS Extender. EC=0344 CS=031F IP=85E2
   AX=001D BX=0005 CX=1800 DX=155F SI=0178 DI=0178 BP=016E DS=027F ES=027F
   SS=027F SP=0166

Cause:

   The KRNL386.EXE (Windows 3.0) file is in the Windows directory. (The values
   of address registers in the memory dump may be different each time.)

Error:

   Cannot run Windows in standard mode;

   Check to ensure you are not running other protected-mode software, or run in
   real mode.

Cause:

   The DOSX.EXE (Windows 3.0) file is in the Windows directory.

MORE INFORMATION
================

To correct this situation delete or rename these files from the Windows 3.1
Windows directory.

Note: There may be other Windows 3.0 files that could have a similar effect on
Windows 3.1 if they are present.

For more information, query on the following words in the Microsoft Knowledge
Base:

   win31 and 386 and enhanced and fault


KBCategory: kbenv kberrmsg
KBSubcategory: win30 win31 winmem

Additional query words: 3.10 msdos

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Keywords          :  
Technology        : kbWin3xSearch kbZNotKeyword3 kbWin300 kbWin300a kbWin310 kbWin311
Version           : WINDOWS:3.0,3.0a,3.1,3.11

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