What is windows host process rundll32

n the era of everything coming over digital platforms, issues like High Disk and CPU usage have now become quite common. And with Windows computers, such issues have been existing for a long back despite whichever version (8/8.1/10) you are using. And if these High Disk and CPU usage are occurring by the rundll32.exe processes, then it can get very annoying for Windows users.

Such issues are not permanent and can be resolved using some dedicated fixes or troubleshooters, Hence, if you are also the one experiencing the same, then you have landed at the right place. In this article, we have listed some of the common and tested fixes that will help you get rid of the said issue.

Table of Contents

    What is Rundll32?

    Rundll32 is a Windows process that is used to run DLL files or programs. It launches functionality stored in shared DLL files. Rundll32 is a regular part of Windows and is located at \Windows\System32\rundll32.exe.

    Now at a time when malware infects the machines, try to use the same name, or run from a different directory then it might cause high disk and CPU usage issues.

    What Is Windows Host Process Rundll32 And What To Do If It’s Not Working?

    Almost everyone nowadays requires to access a personal computer for several reasons. Computers have been one of the most popular and important parts of our lives since the onset of this century. Undoubtedly computers have evolved over the years and different innovations have been brought in. But, in spite of all that modern innovations and changes, problems like Windows host process rundll32 and critical process died seems to persist and that too in various ways.

    One such very common Windows error is windows host process rundll32. It can take up high disk usage on your computer. It might keep popping up and interrupt your PC usage. Have you faced this problem? Yes? Then you are looking for a solution, right? In this article, we will be talking about what is Windows Host Process rundll32 error and how you can effectively fix it.

    What is the Windows Host Process rundll32?

    If you use your Windows for long hours throughout the day, you must have seen thousands of .dll files present everywhere in different storage space. These are pieces of common logic which can be easily accessed for multiple times by the user. However, you cannot run a .dll file on itself independently and therefore, a rundll32.exe application is used for accessing the data in those DLL files.

    Now, if the windows use only of such application then it does not create any problem. But if you see multiple rundll32.exe application running then you would want to stop them. This is because all of those applications use up the CPU power and space, whereas sometimes even viruses run in the background taking up such a name.

    How to fix Windows Host Process rundll32 not working?

    Well, there are several ways by which you can stop all the rundll32.exe applications running on your system. Here are some of the methods which are really effective.

    • The first thing you must do is to run a full system virus scan using a reputed and effective antivirus. This will help you to detect any kind of spyware threat that might have affected your system and is causing the applications to run. After the scan is finished, reboot your computer and check the results. You should be fine again.
    • The legitimate rundll32.exe file is located in C:\Windows\System32\rundll32.exe. So if you find out any kind of rundll32.exe file running that does not lead you back here, stop them by using the task manager. Open the task manager and go to Applications or Services and search for all the illegitimate applications and shut them.
    • If all else fails, even after carrying out both these steps, you have no other option but to format your Windows. Formatting the PC will clear all the malicious and as well as other files as well. So make sure you take a backup of all those important data you have.

    So here are the effective ways by which you can solve the Windows Host Process rundll32 problem. The problem is really irritating because it turns your windows into a laggy machine and it becomes difficult to work at such slow speed rates. Hence follow the steps we discussed in the above section.

    FIX 1: Disable the Telemetry services:

    The Telemetry services record and transmits data from your system and then compare it with the PC’s system. This feature later can cause high disk and CPU usage issues in your system. Hence consider disabling the telemetry services and check whether it helps you get rid of the Rundll32 high disk and CPU usage issue. For doing so,

    You have probably been looking up in your task manager and came across Windows Host Process Rundll32 High Disk Usage. This is the right place to fix the issue as we this guide will help you fix Windows Host Process Rundll32 High Disk Usage problem you are facing.

    What is rundll32.exe?

    Rundll32.exe is a common application in your task manager that helps you launch the 32 bit DLL files. The process as it seems to isn’t a threat. You can locate it in Windows\System32\rundll32.exe as well.

    Windows Host Process Rundll32 High DiskUsage.windows host process rundll32

    There are many possible problems like a spyware can have the same name too. So let’s get started on our guide to fixing Windows Host Process Rundll32 High Disk Usage.

    How to disable Windows Host Process Rundll32 in Windows 7?

    if you want to disable Windows Host Process Rundll32 in Windows 7, you need to to go to system configuration.

    1. Type msconfig.exe in start menu/run and press enter.
    2. As shown in the image below, uncheck these boxes to disable.

    How to disable Windows Host Process Rundll32 in Windows 8/10?

    It’s simpler here as all you need is to go to task manager, and proceed to the startup tab. If you find Rundll32, right-click on it and click disable.

    Uninstall Google Search Engine

    Upon users recommending this method has worked for them. To uninstall google app engine, follow the following steps.

    1. Go to control panel
    2. Go to programs and click on uninstall a program
    3. Search Google App, and uninstall it from your system.

    Fake Rundll32.exe Processes

    There is a possibility of fake Rundll32.exe processes going on in your PC. Follow these steps to find a counterfiet process and remove windows host process rundll32.

    • Go to Task manager, and click “View” at the top
    • Click on “Select Columns”
    • Check mark “Image Path Name”, and click OK to add it to the table
    • Folder Path of every process is displayed where you can look for processes not present in Windows 32 folder named rundll32.exe

    Recently whenever I try to open SAMP or run any .dll file, I notice that my laptop starts heating up and fan starts making noise. After several days I noticed that there is a file called Rundll32 that starts working once I open SAMP that takes like 70% or even more of the UCP. Any ways to stop that from happening?


    How to tell if Windows host process (Rundll32) is malware or not?


    I am in need of some assistance about the Windows host process (Rundll32). Just today as I was looking through my icons in my taskbar on my standard account, I noticed that there was a process labeled “Windows host process (Rundll32)” and I don’t remember ever seeing it before (if not maybe once). But after doing some research, I did the following:

    1.) I did a search in my Disk Drive and noticed that the only Rundll32 files on my computer were the ones that are with my amd processor, the default windows location files, and Malwarebytes Pro.

    2.) I have done numerous full, quick, and flash scans with Malwarebytes Pro and Microsoft Security Essentials but nothing is detected.

    3.) I have tried going into safemode, but it still appears in the list,

    4. I logged on into the Administrator account, and noticed that the process labeled “Windows host process (Rundll32)” is not on the list anywhere (I only use the Administrator account for installing programs only, nothing else. I use a standard account for everything else).

    5.) After reading some research, I noticed that it could be some of the programs I have installed on my computer that maybe using it. However; I can not determine which ones it could be. Here is the list of the programs I have installed and what the taskbar looks like.

    6.) I viewed my running processes in task manger and it does not appear.

    Although the icon has not appeared at all or gives me notifications, it still worries me. So is this a virus that’s harmful to my computer? Please let me know.

    Thank you so much for your assistance. 🙂

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