rundll32.exe Process Information

Process Name: Microsoft Rundll32
Author: Microsoft Corp.
System Process:
Yes
Uses network:
No
Hardware related:
No
Background Process:
Yes
Spyware:
Yes
Trojan:
No
Virus:
No
Security risk 0-5:
0

What is rundll32 exe?

The rundll32.exe process is responsible for running DLLs and placing its libraries in the memory. The rundll32.exe process is known as a command line utility program, and it performs its embedded functions along with the rundll.exe file. Rundll32.exe works by invoking a function that is exported from a specific 16-bit or 32-bit DLL module. However the only DLLs that you can call with the rundll.exe and rundll32.exe files are the ones that are only specified to be accessed by these processes.

The rundll32.exe file operates by parsing the command line. The specified DLL is then loaded through the function LoadLibrary(). Afterwards, from the function , it gets the addresses through GetProcAddress(). The command line tail is passed when the is called. Next, the DLL is unloaded upon the return of . Finally, the rundll32.exe file exits.

Other instances of RUNDLL32.EXE:

1) rundll32.exe is a process registered as a backdoor vulnerability which may be installed for malicious purposes by an attacker allowing access to your computer from remote locations, stealing passwords, Internet banking and personal data. This process is a security risk and should be removed from your system.

2) rundll32.exe could also be a process which belongs to the . This program is a non-essential process, but should not be terminated unless suspected to be causing problems.

Warning: Multiple instances of RUNDLL32 may be running on your pc at one time. Some of these may or may not be the legitimate versions.

Should You Remove rundll32 exe?

If you are asking yourself if it is safe to remove rundll32.exe from your Windows system then it is understandable that it is causing trouble. rundll32.exe is a system process. rundll32.exe should not be disabled, required for essential applications to work properly. System processes are processes that are run and managed by the operating system and are important to run the operating system. System processes manage different functionality of the operating system including memory management, hard disk management, network management, display, and so on. So, it is recommended that you do not remove rundll32.exe.

Fix rundll32.exe Error?

There are many reasons why you are seeing rundll32.exe error in your Windows system including:

Malicious software
Malicious software infects the system with malware, keyloggers, spyware, and other malicious actors. They slow down the whole system and also cause .exe errors. This occurs because they modify the registry which is very important in the proper functioning of processes.
Incomplete installation
Another common reason behind rundll32.exe error is an incomplete installation. It can happen because of errors during installation, lack of hard disk space, and crash during install. This also leads to a corrupted registry causing the error.

Application conflicts and Missing or corrupt windows drivers can also lead to rundll32.exe error.

The solution to fixing rundll32.exe error include any one of the following

  • Make sure your PC is protected with proper anti-virus software program.
  • Run a registry cleaner to repair and remove the Windows registry that is causing rundll32.exe error.
  • Make sure the system’s device drivers are updated properly.

It is also recommended that you run a performance scan to automatically optimize memory and CPU settings.

Is a rundll32.exe CPU intensive?

Windows process requires three resource types to function properly including CPU, Memory, and Network. CPU cycles to do computational tasks, memory to store information and network to communicate with the required services. If any of the resources are not available, it will either get interrupted or stopped.

Any given process has a process identification number(PID) associated with it. A user can easily identify and track a process using its PID. Task Manager is a great way to learn how much resources rundll32.exe process is allocating to itself. It showcases process resource usage in CPU/Memory/Disk and Network. If you have a GPU, it will also showcase the percentage of GPU it is using to run the process.