General discussion

Windows XP Home startup error: 16 bit windows subsystem

Like others have reported, I have the Windows XP Home startup error:

Under the banner ?16 bit Windows Subsystem? I get this error: C:\windows\system32\autoexec.NT
The system file is not suitable for running MS-DOS and Microsoft Windows applications.

I have followed the steps recommended online for this problem (expanding autoexec.nt_ and command.com and config.nt: When I expanded autoexec.nt_ and rebooted, the file was moved to the windows\repair folder. I have downloaded and installed XP_Fix.exe; and have run PestPatrol and other Spy scanners.

I don?t know how to isolate the program causing this error or repair the problem.

Any ideas?

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RE:
PART I:

1. The article [Q324767] explains error messages you may receive should they become missing or damaged, and the repair procedures for extracting the files "Config.nt" and "Autoexec.nt" from the Windows media into the "%SYSTEMROOT%\System32 folder". Also, please note the hyperlinks contained in the section "MORE INFORMATION" for additional troubleshooting.

Note: I have not had the need to download and use the utility "XP_Fix.exe" a 140KB file which is described as a program that will reinstall the missing or corrupted Windows XP system files Command.com, Autoexec.nt and Config.nt.

2. Since Windows allocates resources according to its settings and manages devices accordingly, users can change performance options that control how programs use memory, including paging file size, or environment variables - a string consisting of environment information, such as a drive, path, or file name, associated with a symbolic name that can be used by Windows. A user may also use the SET command from the command prompt to define environment variables.

a. Verify that the default items contained in the Config.nt and Autoexec.nt files are present and in the proper order. Example:

dos=high, umb
device=%SystemRoot%\system32\himem.sys
files=40

@echo off
lh %SystemRoot%\system32\mscdexnt.exe
lh %SystemRoot%\system32\redir
lh %SystemRoot%\system32\dosx
SET BLASTER=A220 I5 D1 P330 T3


b. Users can add (new), modify, or remove an environment variable (right-click My Computer, Properties, Advanced, Environment variables) which is established during Setup by some programs, and those by users. Changes are written to the registry (Global Environment Variables) and are usually effective immediately. However, after a change to user environment variables is made, any open software programs should be restarted to force them to read the new values.

3. Running some MS-DOS programs properly might require that you change the system configuration used by the MS-DOS virtual machine, [Microsoft">http://www.microsoft.com/mspress/books/sampchap/6271.asp]Microsoft
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I've tried most of these things...

I downloaded the patch and it had no effect. It just loaded identical files in the System 32 directory with the extensions .bak. Tried getting a complimentary Housecall scan from TrendMicro, but the Scanner doesn't work for me. I don't think I have any more virus or adware....I've been running Adaware, Spybot, Yahoo Anti-Spy AOL Anti-Spy and MS Anti-Spy Beta along with my EZAnti-Virus from Computer Associates and I register clean. I think however that my system might've been damaged somehow by a virus or adware. Had real troubles with PeopleOnPage for a couple of weeks. I was thinking of dumping Service Pack 2 since I heard it has some negative effects or do you think it's too late for that?

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SP2 is not the cause of your
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Here's some reading on that error message.

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