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However, there is an easy and reliable way - using a file recovery application. You have to reinstall Windows OS or download from the third-party dll sites. Sometimes, the dll file was deleted by you or malware. However, most of them result from a corrupt or damaged version of the ntdll DLL file itself, corrupt hardwaredrivers, or issues between Windows and other programs. The causes of ntdll.dll error messages can vary greatly.
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Another way to tackle these issues is to re-install the application that is giving you trouble. Go ahead with the uninstall, and then reinstall your application. The size of the file varies from 6 – 11 bytes, depending on the version of Windows (XP/Vista/7/8) and Internet Explorer you are using.
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