stop c0000139 entry point not found

stop c0000139 entry point not found. The procedure entry point wcsncpy_s in the dynamic link library ntdll.dll.

How can I sort this problem out?
sorushAsked:
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sorushAuthor Commented:
My solution was to start in OEM dvd and to copy ntdll.dll from the x:\Windows\system32\ to c:\Windows\system32.
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Ivano ViolaSystem AdministratorCommented:
Does the computer blue screen every time you boot up? Any new programs installed recently?
If the problem started occurring after a new program install then you could try booting up into safe mode and uninstalling the program. On boot-up hit the F8 key and select safe mode. If not then I would try doing a system restore to a point in time before this problem started occurring.
Here is an article on how to do a system restore in Windows 7:
http://www.sevenforums.com/tutorials/700-system-restore.html

Let me know how it goes or if you have more information regarding the problem.
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ded9Commented:
You can also try startup repair by booting from windows 7 disc.


Ded9
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sorushAuthor Commented:
The solution I mention here is best
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