You may have a virus/trojan/worm.
Task Manager, MSCONFIG, or REGEDIT disappear while opening
http://www.mvps.org/sramesh2k/ToolsQuit.htm
Msconfig.exe does NOT belong in the \windows\system32 folder.
Msconfig.exe belongs in...
C:\WINDOWS\pchealth\helpctr\binaries
and this folder
C:\WINDOWS\system32\dllcache
or if it exists, this folder
C:\WINDOWS\ServicePackFiles\i386
Try these commands...
Paste the following lines into Start | Run and click OK...
msconfig.exe
%windir%\pchealth\helpctr\binaries\msconfig.exe
%windir%\system32\dllcache\msconfig.exe
%windir%ServicePackFiles\i386\msconfig.exe
Do any of those commands work?
%windir%\pchealth\helpctr\binaries\msconfig.exe is the copy that normally
gets used.
This registry key makes it possible to type msconfig without an extension or
path in the Run command.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\
CurrentVersion\App Paths\MSCONFIG.EXE
Value Name: (Default)
Data type: REG_SZ
Value Data: C:\WINDOWS\PCHealth\HelpCtr\Binaries\MSConfig.exe
If Msconfig.exe has been disabled by some Group Policy.
Try this.
Open the Registry Editor...
Start | Run | Type: regedit | Click OK |
Navigate to >>>
HKEY CURRENT USER\Software\Microsoft\Windows\
CurrentVersion\Policies\System
Look in the right hand pane for a value called Disablemsconfig. If the
value exists, double click on Disablemsconfig and set the value to 0. If it
doesn't exist, right click in the right pane and select New, DWord value.
Name it Disablemsconfig and leave it set at 0.
You may also want to investigate the following registry keys for a
Disablemsconfig value.
HKEY LOCAL MACHINE\Software\Microsoft\Windows\
CurrentVersion\Policies\System
HKEY USERS\.DEFAULT\Software\Microsoft\Windows\
CurrentVersion\Policies\System
from...
http://www.experts-exchange.com/Operating_Systems/WinXP/Q_21843287.html
Or just do a Search in the registry for Disablemsconfig.
Open the Registry Editor.
Hit F3.
Paste Disablemsconfig in the Find What box.
Click the Find Next button.
To keep searching if it finds Disablemsconfig, hit F3 again.
Keep hitting F3 until you see the Finished searching through the registry
message.
--
Hope this helps. Let us know.
Wes
MS-MVP Windows Shell/User
In