Most Ntdll.dll errors occur when
the .DLL itself is corrupt or damaged, corrupt hardware drivers or
issues between Windows and other programs. To troubleshoot the origin
of this .DLL error and identify a solution, you should perform the
Restart your computer. The error
may not persist.
Reinstall the program that
caused the error.
Install any software updates for
the program that caused the error.
Download and install the latest
Disable each Internet Explorer
Disable Data Execution
Prevention for Explorer.exe
Test your system memory and hard
drive. Replace parts if necessary.
Perform a repair installation of
none of these solutions fixed the error you may need to perform a
clean installation of Windows or replace the .dll by downloading the
ntdll.dll error (
Download Ntdll.dll )
Follow the steps provided at the link.