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Solution: Malwarebytes runtime error

What is the cause of the runtime error when installing Malwarebytes (Couldn’t Install Proc)

  • Damaged Malwarebytes installation: If this problem occurred after a failed Malwarebytes installation, you are probably seeing this error code because you still have leftover files from the corrupted installation. In this case, you can use the Malwarebytes support utility to remove the remaining files.
  • Untrusted Malwarebytes certificate: if you are experiencing this problem on Windows 10, you are most likely seeing this error code because your system has classified the security certificate that Malwarebytes needs as “untrusted”. In this case, you can solve the problem by using the certificate manager to remove the Malwarebytes certificate and install any pending Windows updates before attempting the installation again.
  • Damaged system files: in more severe conditions, you can expect this problem to occur due to some kind of corruption of some Windows files. In this case, the first attempt to solve the problem is to use some built-in utilities that can fix corrupted system files (DISM and SFC). If this fails, you should consider repairing or a new installation.
  • The %TEMP% folder is in a different location: It turns out that one of the most common cases where this problem occurs is in a scenario where the TEMP folder is on the network or on RAMDRIVE or RAMDISK, rather than in its default location. If this is the case, you should be able to solve the problem by moving the Temp folder back to its default location.
  • Logical errors on the operating system disk: According to some concerned users, this problem can also occur in situations where the operating system disk contains logical errors that affect its ability to safely store newly created files. In this case, you should run a CHKDSK scan and see if it solves the problem.
  • Residual malware/emergency files: according to the Malwarebytes team’s security post, this problem can occur if the operating system disk currently stores files that actively prevent certain security packages from being installed. Users who also encountered this problem were able to resolve it by running a scan with a third-party Security Scan.

To fix Malwarebytes installation runtime error (Failed to install Proc)

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To fix Malwarebytes installation runtime error (Failed to install Proc)

Блог молодого админа

Method 1: Moving %TEMP% folder back to the Default Location

According to some affected users, this problem can occur in instances where your OS is unable to temporarily save the files used by Malwarebytes during the installation in the %TEMP% folder. In most cases, this problem will occur due to the fact that the folder is either located on a network or a Random Access Memory Drive (also known as RAMDRIVE or RAMDisk).

If this scenario is applicable, you should be able to fix this problem by using an elevated Command Prompt to set the %TEMP% folder in the correct location before retying the installation.

In case you’re looking for step by step instructions, follow the short guide below:

  1. First things first, start by downloading the latest version of Malwarebytes from the official web page .
  2. Next, press Windows key + R to open up a Run dialog box. Next, type ‘cmd‘ and press Ctrl + Shift + Enter to open up an elevated Command prompt. When you see the UAC (User Account Control), click Yes to grant admin access.
    Opening an elevated Command Prompt
  3. Once you’re inside the elevated Command Prompt, type the following commands in the same order and press Enter after each line to move the %TEMP%, %TMP%, and Download folder to the default location:set TEMP=C:Windowstemp
    set TMP=C:Windowstmp
    cd “%USERPROFILE%Downloads”
  4. Once every command has been successfully processed, you can safely close the elevated Command prompt.
  5. RIght-click on the Malwarebytes setup executable you downloaded at step 1 and click on Run as Administrator from the context menu that just appeared.
    Running the Malwarebytes installation executable as administrator
  6. Carry on with the installation normally and see if the problem is now fixed.

If the same ‘Runtime error (83:120): Could not call proc.’ problem is still occurring, move down to the next potential fix below.

Method 3: Running a Farbar Security Scan

According to some affected users, this problem can also occur if you’re dealing with some kind of remnant adware or malware files that are inhibiting your OS ability to install security suites – As it turns out, certain malware will actively try to block the installation of security suites.

If this scenario is applicable, you should attempt to fix the problem by running a 3rd party scan with a 3rd party suite like Farbar Recovery.

Note: This is not an official Microsoft product. Even though a lot of users have confirmed it’s effective in fixing this problem, it will handle and potentially replace critical kernel data belonging to your Windows installation.

If you are determined to use this utility, follow the instructions below to use Farbar Security Scan to initiate a security scan to fix the Runtime error when installing Malwarebytes:

  1. Open your default browser and visit the official download page of Farbar Recovery Scan to download the latest version. Keep in mind that you’ll need to choose between the 32-bit and 64-bit versions depending on your OS architecture.
    Downloading the Farbar Security Scan
  2. Once the executable is successfully downloaded, right-click on it and choose Run as administrator from the context menu. When you see the UAC prompt, click Yes to grant admin access.
  3. Next, follow the on-screen prompts to complete the installation, then restart your computer and wait for the next startup to complete.
  4. After your computer boots back up, open the Farbar Recovery Scan tool and click Scan on the first screen. leave the default settings intact and click on Fix to start the operation.
    Running a Farbar Recovery Scan
  5. Once the operation is complete, restart your computer once again and see if the issue is fixed at the next computer startup.

If the same problem is still occurring, move down to the next potential fix below.

Fix 3: Run CHKDSK Scan for Your Disk

According to the reports from some affected Malwarebytes users, the Malwarebytes installation runtime error could be caused by logical errors on the disk and they’ve fixed the problem by using the CHKDSK utility.

If you are still bothered by the problem, you can feel free to run a CHKDSK scan for your disk to fix potential logical hard drive errors. To do that, you just need to open Command Prompt as an administrator, input the command chkdsk X: /f /r (replace X with the drive letter of the partition you want to scan for), and press the Enter key.

Note: If you are performing the command for the system drive, or some processes in the target drive is running, you will be required to restart your computer to complete the process.

Then, this utility will fix any found errors on the target drive, and also locate bad sectors on the drive and try to recover any readable information from them. After that, you can try installing Malwarebytes again to check if the problem has been resolved.

Reset the %TEMP% folder to the default folder

As mentioned above in the reasons, improper placement of the %TEMP% folder. The folder is usually located on RAMDRIVE, RAMDISK, or on the network, not in the original location. In this case, all you can do is move the %TEMP% folder to the desired location and then try the installation process again. To do this,

  1. First, download the latest version of Malwarebytes from the official website.
  2. Now run the RUN prompt by pressing the WINDOWS + R key combination at the same time.
  3. Type “cmd” in the empty dialog box and click OK. This will open a command prompt window for you. If you see the UAC (User Account Control) option, click “Yes” and you will have administrator rights for the command prompt window.
  4. In the command prompt window, type or copy the following commands in turn and press Enter after each command.
    set TEMP=C: Windows emp
    set TMP=C: Windows mp
    cd “%USERPROFILE%Loads
  5. Once all the commands you have entered have been processed, you can close the command line window.
  6. Now navigate to the Malwarebytes installer executable (which you downloaded in the first step), right-click on it, and select Run as administrator from the submenu.
  7. Now try to install the malware bytes and check if the mentioned problem persists and if you get the message “Runtime error (83:120) : Could not call proc” or not.

Method 2: Running a CHKDSK scan

According to some affected users, this problem can also occur due to an issue related to your traditional hard drive or solid-state drive. In most cases, you can expect this issue to occur due to a logical error or a data block inconsistency.

Users that found themselves in a similar situation have confirmed that they managed to fix the issue by using the CHKDSK utility to fix (or at least replace) hard drive errors and bad sectors that might be contributing to the apparition of this error code.

You can initiate a Check Disk utility from an elevated Command prompt. But in order to make sure that you maximize your chances at fixing the Could not call proc. error, our recommendation is to open the CMD prompt with admin access. Here are some instructions that will show you how to run a CHKDSK scan .

Running a CHKDSK scan

Note: These instructions will work on every recent Windows version including Windows 7, Windows 8.1, and Windows 10.

In case you already initiated a Check Disk utility scan and you’re still seeing the same Runtime error (83:120): Could not call proc. error when you attempt to install Malwarebytes, move down to the next potential fix below.

Run the CHKDSK scan

Any problem with the semiconductor or traditional hard drive can also cause a “Runtime error (83:120): Could not call proc” message for some users.

It can also be caused by inconsistent data blocks or a logical error. Affected users have tried to fix this situation by running a CHKDSK scan. To do this,

  1. First, press WINDOWS + X to open the WinX menu.
  2. Now, in the WinX Menu, click Command Prompt (Admin) to run the extended command line (if you see the UAC (User Account Control) option, click Yes to grant yourself administrator privileges in the command line window).


  1. Run the RUN prompt and type cmd in the empty dialog box, then click OK. A command prompt window will open. If you see the UAC (User Account Control) option, click Yes, and you will have administrator access to the command line window.
  2. Now type Chkdsk X in the command line window:

NOTE: Here, “X” is the drive letter that corresponds to the partition on your computer’s hard drive (which you want to scan with CHKDSK). Next are the parameters that you want CHKDSK to use to perform the scan. After that, press the Enter key.

When running the CHKDSK utility from the extended command line, you can use any of the following parameters:

/f – Tells CHKDSK to fix any errors it finds.

/r – Tells CHKDSK to find bad sectors on the disk and try to recover all readable information from those sectors.

/x – Tells CHKDSK to forcibly disconnect the selected drive before scanning it.

  • The last command you enter on the extended command line is as follows:

Chkdsk D: /f /x (if you want CHKDSK to shut down the D drive on your computer and then check for errors and fix them).


Chkdsk C: /f (if you want CHKDSK to look for errors on your C drive and try to fix them).

  • Now, wait for the CHKDSK scan to finish. After that, it will try to fix most of the bugs available on your system. After that, try to install the malware bytes and see if the problem is solved or not.

Note: The above method works on Windows 7, 8, 8.1, and 10.

Fix 2: Use the Malwarebytes Support Tool

The Malwarebytes Support Tool is an official supported utility that helps to troubleshoot, repair, and resolve problems with Malwarebytes for Windows. If you encounter the Malwarebytes runtime error, you can use this tool to clean any remnant files and reinstall Malwarebytes.

Note: You must have Microsoft .Net 4.0 on your computer to run the Malwarebytes Support Tool.

You just need to:

Step 1: Download the Malwarebytes Support Tool and launch the downloaded executable file.

Step 2: Check the Accept License Agreement option and click Next to complete the installation of the tool. And the support tool will open automatically.

Step 3: Click Advanced in the left menu and then click the Clean button.

click Clean

Step 4: In the Malwarebytes Cleanup window, click Yes to confirm the operation. When the process is done, click OK in the pop-up window to restart your computer.

At the next startup, you will receive a pop-up asking if you want to reinstall Malwarebytes. Just click Yes to reinstall the application according to the onscreen instruction. You should be able to complete the Malwarebytes installation without the runtime error this time.

Fix 1: Move the %TEMP% Folder to the Default Location

As mentioned before, the improper %TEMP% folder location could cause Malwarebytes installation runtime error. To solve the problem, you can follow the instructions below to move the folder to its default location:

Step 1: Press Windows + S and input cmd. Right-click Command Prompt from the search result and choose Run as administrator.

Step 2: Now, type the following commands one by one and press Enter after each:

  • set TEMP=C:Windowstemp
  • set TMP=C:Windowstmp
  • cd “%USERPROFILE%Downloads”

move related folders to the default location

Step 3: Close Command Prompt. right-click your downloaded setup executable of Malwarebytes and choose Run as Administrator to launch it.

You can check if the installation process can be carried out normally. If the “runtime error: could not call proc” error message appears again, you can move on to the next solution.

Способ №2. DirectX

Вполне вероятно, что ее появление вызывают какие-то проблемы с DirectX. Возможно, какие-то файлы исполняемых библиотек были повреждены или же существующие библиотеки банально устарели.

В любом случае, лучше всего просто установить наиболее актуальные варианты и, опять же, перезагрузить компьютер.

Для этого зайдите на сайт Microsoft, на страницу с возможностью скачать DirectX (вот ссылка). Запустите скачанный файл и выполните все действия, подразумевающие установку исполняемых библиотек.

Здесь нет никаких особых рекомендаций – обычная.

Страница загрузки DirectX

Если после установки и перезагрузки компьютера ошибка не исчезла, идем дальше.

Ошибка Runtime Error. Как исправить?

Ошибка Runtime Error возникает достаточно часто. Во всяком случае, с ней сталкивается достаточно большое количество пользователей. А возникает она при запуске той или иной программы или игры (помнится, давным-давно при запуске Counter-Strike некоторое время вылетала ошибка Runtime Error 8, пока я ее не исправил). В отличии от многих других ошибок, Runtime Error исправить не так уж сложно, о чем я хочу рассказать вам более подробно.

Способ №1. CCleaner

Самое простое решение заключается в том, чтобы воспользоваться программой для чистки реестра. Как это работает?

Все просто – чистильщик реестра, собственно, и предназначен для того, чтобы исправлять всевозможные проблемы, вроде той, которую рассматриваем мы, систематизировать файлы и добавлять то, чего недостает ему для нормальной работы.

Лучшей по праву считается CCleaner, хотя вы можете воспользоваться и другой.

Чтобы использовать ее, сделайте вот что:

  1. Скачайте (вот ссылка на бесплатную) и установите программу.
  2. Запустите. Перейдите на вкладку «Реестр» на панели слева.
  3. В разделе «Целостность» поставьте галочки на всех возможных пунктах – никто не знает, в чем именно проблема.
  4. Нажмите кнопку «Поиск проблем». Когда этот процесс закончится, нажмите кнопку «Исправить…».


  1. Подождите, пока приложение исправит все проблемы. Перезагрузите компьютер.

После этого runtime error должен перестать появляться. Если нет, переходим к следующему решению.

Увлекательный блог увлеченного айтишника

Способ №3. Visual C++

О распространяемом пакете Visual C++ в контексте рассматриваемой проблемы можно скачать то же самое, что и о библиотеках DirectX.

Возможно, какие-то файлы были повреждены или версия устарела.

Бывают в данном случае и другие ситуации, когда установленная C++ попросту не подходит для вашей операционной системы.

Ниже приведена таблица с вариантами, которые подходят для разных версий ОС.

Таблица 1. Требуемые версии Visual C++ для Windows

Операционная системаТребуемая Visual C++
Windows XP и ниже C++2008
Windows 7 C++2010
Windows 8 и 10 Наиболее актуальная на данный момент

Так вот, в зависимости от того, какая у вас ОС, вам следует скачать и инсталировать на свой компьютер C++2008 (64-бит, 32-бит), C++2010 (64-бит, 32-бит) или же C++2015 обновление 3.

Это наиболее актуальная версия по состоянию на июнь 2017 года. В будущем выйдут новые, поэтому следите за новостями на официальном сайте Microsoft.

Скачивание происходит одинаково – выбираем язык распространяемого компонента и жмем кнопку «Скачать». После этого останется запустить загруженный файл.

После этого перезагрузите компьютер.

Страница загрузки Visual C++


  • https://windowsbulletin.com/solution-malwarebytes-runtime-error-could-not-call-proc/
  • https://appuals.com/runtime-error-when-installing-malwarebytes/
  • https://www.partitionwizard.com/partitionmagic/malwarebytes-runtime-error.html
  • https://molotokrus.ru/legkiy-sposob-ispravleniya-oshibki-runtime-error/
  • https://pomogaemkompu.temaretik.com/1702206922594454476/samye-legkie-sposoby-ispravit-oshibku-runtime-error/
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