Fix nat.exe Error - How To Completely Fix nat.exe Error

What is nat.exe and nat.exe error?
nat.exe is a process from Macromedia, Inc.. It can be found in the location of C:\Documents and Settings\All Users\ . On the other hand, nat.exe is a potential security risk which can be modified maliciously by virus. Thus you should remove the file as soon as you find it, otherwise you may run into wininet.dll error.

nat.exe error is a common but serious EXE error which is tied closely with nat.exe file. A list of system files are associated with nat.exe, they are listed below: SetCh.dll, vsconfig.dll.mui, kbdsg450.dll, lvi_dbres.dll.mui, LNDCgLMHO.exe, chs_msnlextres.dll.muil, salesaddin.dll, lvi_dbres.dll.mui, jpn_msnlextres.dll.mui and hun_uncres.dll.mui.

What cause nat.exe error?

Multiple system problems can result in nat.exe error, they are listed below: unwanted removal or missing nat.exe, incorrect version of nat.exe, installation of nat.exe aborted, invalid nat.exe, corrupt nat.exe repair failure, associated .dll file corruption, invalid installation files of application program, disordered registry, mess of junk files, Windows update failure, damaged driver files and undesirable registry problems.

Common nat.exe error messages:

" Title: System Shutdown

       This system is shutting down. Please save all work in progress and log off. Any unsaved  

       Changes will be lost. This shutdown was initiated by NT AUTHORITY\SYSTEM

       Time before shutdown :    XX:XX:XX

       Message

       The system progress 'C:\WINDOWS\system32\nat.exe'

       Terminated unexpectedly with status code 0. The system will now shut down and restart."

" Title: nat.exe - Operation Failed

      The requested operation was unsuccessful."

" Title: End Program - net.exe

      This program is not responding



      To return to Windows and check the status of the program. click Cancel.

      If you choose to end the program immediately. You will lose any unsaved data. To end the

      program now, click End Now."

" Title: nat.exe - System Error

      Indicates a revision number encountered or specified is not one known by the service.

      It may be a more recent revision than the service is aware of."

How to comprehensively fix nat.exe error?

Situation One: File Not Found, Missing File

Solution One: Re- register associated .dll files of nat.exe.

In order to fix nat.exe error, you can have a try to re- register the associated .dll files of nat.exe in the event that they haven’t been damaged by any unintentional activity or compromised by malware. You can follow the simple steps listed below :

For Windows XP user:

Step One: Click Start, click Run.

Step Two: Type cmd onto the pop-up dialog box and press Enter to enable Command Prompt utility.

Step Three: Type for %1 in (%windir%\system32\*.dll) do regsvr32.exe /s %1 onto the Command Prompt window when it appears.

Step Four: Press Enter to finish the modification.

For Windows 7 user:

Step One:Click Windows or Start if you are using Classic theme.

Step Two: Type cmd onto the latest search box on Windows menu.

Step Three:As soon as the Command Prompt appears on the screen, type

for %1 in (%windir%\system32\*.dll) do regsvr32.exe /s %1

Step Four: Press Enter

Situation Two: Virus Attack

Solution Two: Clean Virus Manually

1. Preparatory work

Step One: Double click on My Computer, from Tools, click Folder Options, select View

Step Two: Cancel the hooks in front of Hide Protected Operating System Files and Hide Extensions For Known File Types

Step Three: Check Show Hidden Files And Folders

2. Kill Process

It won't work if you use Task Manager by pressing Ctrl+Alt+Del and then try to kill the nat.exe process that are designated with a user name of "SYSTEM" by right-click.

Step One: Press Ctrl+Alt+Del to enable Task Manager, from View menu, select Select Process Page Columns

Step Two: Select PID (Process Identifier) and then click OK

Step Three: Locate nat.exe(its user name is not SYSTEM), remember its PID number

Step Four: Click Start, go to Run

Step Five: Type CMD and press Enter to enable command line console

Step Six: Type ntsd -c q -p (type the PID number mentioned above in this position) and Enter

3. Delete Virus Files

Delete the files in the following:

C:\Program Files\Common Files\INTEXPLORE.pif  　　

C:\Program Files\Internet Explorer\ 　　

C:\WINDOWS\EXERT.exe （or exeroute.exe） 　　

C:\WINDOWS\IO.SYS.BAK 　　

C:\WINDOWS\nat.exe 　　

C:\WINDOWS\Debug\DebugProgram.exe 　　

C:\WINDOWS\system32\dxdiag.com 　　

C:\WINDOWS\system32\MSCONFIG.COM 　　

C:\WINDOWS\system32\ 　　

Right click on D: disk, select Open. Delete Autorun.inf file in its root

4. Delete junk messages in registry

Rename regedit.exe with any name you like, then delete the values below:

　

HKEY_CLASSES_ROOT\WindowFiles 　　

HKEY_CURRENT_USER\Software\VB and VBA Program Settings 　　

HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\ Check_Associations 　　

HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\INTEXPLORE.pif 　　

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run \ToP

5. Fix Registry

Step One: Change the default values of HKEY_CLASSES_ROOT\.exe to exefile

Step Two: Change the default values of

HKEY_CLASSES_ROOT\Applications\iexplore.exe\shell\open\command   to

“C:\Program Files\Internet Explorer\iexplore.exe” %1

Step Three: Change the default values of

HKEY_CLASSES_ROOT\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D} \shell\OpenHomePage\Command   to

C:\Program Files\Internet Explorer\IEXPLORE.EXE

Step Four: Change the default values of HKEY_CLASSES_ROOT \ftp\shell\open\command

and HKEY_CLASSES_ROOT\htmlfile\shell\opennew\command   to

“C:\Program Files\Internet Explorer\iexplore.exe” %1

Step Five: Change the default values of

HKEY_CLASSES_ROOT \htmlfile\shell\open\command

and HKEY_CLASSES_ROOT\htmlfile\shell\opennew\command   to

“C:\Program Files\Internet Explorer\iexplore.exe” –nohome

Step Six: Change the default values of

HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet   to

“IEXPLORE.EXE”　　

6. Finishing Touch

Close registry, then rename the modified file back to regedit.exe

Obviously we do not suggest fixing nat.exe error in registry yourself for it is quite dangerous and risky to modify registry without professional help. As registry is the most important database of computer, any incorrectly modification or damage to it will cause serious system problems, some of which are even irretrievable. So the safest way in fixing nat.exe error is to use a powerful registry utility. With the understandable interface of the tool, you can easily fix nat.exe error and its associated problems without considering computer skills. Soon your computer will be in a better status , of course, you will never be trapped in nat.exe error as well.

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