All windows operating systems would have a file named ntdll.dll, which contains the description of NT layer DLL. The ntdll.dll has all the NT kernel functions. There are many factors that could cause the file to stop working.
You will generally get an Ntdll.dll error when you start or shut down the computer or even when you start or close a program. Following are some of the commonly faced Ntdll.dll errors:
"AppName: [PROGRAM NAME] ModName: ntdll.dll"
"NTDLL.DLL Error!"
"Unhandled exception at [ANY ADDRESS] (NTDLL.DLL)"
"STOP: C0000221 unknown hard error \SystemRoot\System32\ntdll.dll"
If you get any of the error mentioned above you will not be able to access the data saved on your computer till the issue is resolved. In some cases the OS would be needed to be reinstalled; in this case you can opt for professional help to retrieve the data in your computer.
Cause
The main reason for getting a ntdll.dll error is damaged or missing file. Some of the other reasons are corrupt device drivers, defective hardware and software conflict.
Steps to Solve the Issue
Sometimes errors related to Ntdll.dll can be a temporary issue and can be resolved simply by restarting the computer.
Disabling Data Execution Prevention for Explorer.exe could also resolve the issue, but in case if it does not, change it back to the way it was.
If the Ntdll.dll error occurs only when you are using a specific software program, then reinstall the program and install all the updates and patches for it.
Installing the latest service pack for windows can also solve Ntdll.dll errors.
Update all the hardware drivers in your computer
Ntdll.dll errors that occur while using Internet Explorer or other browsers can be due to an Add on. You can disable the Add on programs one by one to isolate the Add on that's creating the problem. Then you can permanently remove that add on or reinstall the most recent version of it.
Reset or replace the memory.
Disconnect any hardware or IDE cable that's malfunctioning.
Perform Repair Install for Windows
And finally if nothing of the above works, get some professional help to back up your data and do a clean reinstall of windows.
You will generally get an Ntdll.dll error when you start or shut down the computer or even when you start or close a program. Following are some of the commonly faced Ntdll.dll errors:
"AppName: [PROGRAM NAME] ModName: ntdll.dll"
"NTDLL.DLL Error!"
"Unhandled exception at [ANY ADDRESS] (NTDLL.DLL)"
"STOP: C0000221 unknown hard error \SystemRoot\System32\ntdll.dll"
If you get any of the error mentioned above you will not be able to access the data saved on your computer till the issue is resolved. In some cases the OS would be needed to be reinstalled; in this case you can opt for professional help to retrieve the data in your computer.
Cause
The main reason for getting a ntdll.dll error is damaged or missing file. Some of the other reasons are corrupt device drivers, defective hardware and software conflict.
Steps to Solve the Issue
Sometimes errors related to Ntdll.dll can be a temporary issue and can be resolved simply by restarting the computer.
Disabling Data Execution Prevention for Explorer.exe could also resolve the issue, but in case if it does not, change it back to the way it was.
If the Ntdll.dll error occurs only when you are using a specific software program, then reinstall the program and install all the updates and patches for it.
Installing the latest service pack for windows can also solve Ntdll.dll errors.
Update all the hardware drivers in your computer
Ntdll.dll errors that occur while using Internet Explorer or other browsers can be due to an Add on. You can disable the Add on programs one by one to isolate the Add on that's creating the problem. Then you can permanently remove that add on or reinstall the most recent version of it.
Reset or replace the memory.
Disconnect any hardware or IDE cable that's malfunctioning.
Perform Repair Install for Windows
And finally if nothing of the above works, get some professional help to back up your data and do a clean reinstall of windows.