The DLL also called Dynamic Linked Library to hold a set of functions available in the Windows 10/8/7 operating system. Another program can call and execute the function. DLLs are built so that they can be updated and managed separately. Today, we explain about three of these DLL files – Ntdll.dll, Advapi32.dll, and Gdi32.dll
Remember that these are Windows system files, that is, part of the main operating system. They are important and should not be deleted. If they are missing, you will need to run the SFC or DISM tools to replace the corrupt files or copy the new files.
1) What is Ntdll.dll
NT-DLL = NT Layer DLL
This is another operating system file that contains the NT kernel functions generally available in C: Windows System32. This is not a threat or a virus or a ransomware. No, you should not delete this file.
More than two thousand five hundred functions and variables are available in the DLL. It includes the native API, CSR utilities, event tracking, load functions, loader initializations, and the runtime library.
Lily: Fixed ntdll.dll crash error on Windows 10.
2) What is Advapi32.dll?
Advapi32.dll = Advanced 32-bit Application Programming Interface
Advapi32.dll is part of the Windows 32 API, which also includes kernel32.dll, advapi32.dll and ntdll.dll. It offers a library of API services that support security and registry calls. It also supports Event Tracing for Windows and was introduced for the first time in the fifth version of the DLL.
Lily: What is Rundll32.exe advapi32.dll doing?
3) What is Gdi32.dll
Gdi32.dll = 32-bit graphics device interface
It contains features required by the Windows or GDI graphics device interface to print graphics and text on a screen and printer. The applications request Gdi32.dll, which in turn sends the instructions to the graphics hardware to complete the drawing and font management requests. It is only available for 32-bit applications. 64-bit applications must use GDI +.
If you manage to delete or the file is corrupted, any application you launch will generate an error stating:The program can not start because GDI32.dll is missing from your computer. Try to reinstall the program to resolve this problem.
If that's what you see, it would be best to start the computer in safe mode and run the SFC tool to replace it with a new copy.
All of these files are located in the System32 or SysWOW64 directory. If you also find them somewhere else, it is best to run your virus scan.
Want to know more about these processes, files or file types?
Hal.dll, Kernel32.dll, User32.dll | Ntoskrnl.exe, Ntkrnlpa.exe, Win32k.sys | CompatTelRunner.exe | Windows.edb files | csrss.exe | Rundll32.exe | Thumbs.db Files | NFO and DIZ files | Index.dat file | Swapfile.sys, Hiberfil.sys & Pagefile.sys | Nvxdsync.exe | Svchost.exe | RuntimeBroker.exe | TrustedInstaller.exe | DLL or OCX files | StorDiag.exe | MOM.exe | Host Process for Windows Tasks | ApplicationFrameHost.exe | ShellExperienceHost.exe | winlogon.exe | atieclxx.exe | Conhost.exe | JUCheck.exe | vssvc.exe | wab.exe | utcsvc.exe | ctfmon.exe | LSASS.exe | csrss.exe.