DirectX Setup: An internal system error occurred [SOLVED]

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Fix DirectX errors

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Gaming fanatics might occasionally need to install DirectX manually to ensure their laptops or desktops meet games‘ DirectX system requirements.

However, some users have stated that a DirectX “An internal system error occurred” error message pops up when they try to install DirectX (version 9 or higher).

If that error message pops up when you open the DirectX installer, this is how you can fix it.

How can I fix DirectX Setup: An internal system error occurred?

  1. Run the DirectX Installer as Admin
  2. Switch Off Third-Party Antivirus Software
  3. Install DirectX With DirectX End-User Runtimes
  4. Install DirectX Within an Admin Account
  5. Scan the Registry With CCleaner
  6. Edit the Registry

1. Run the DirectX Installer as Admin

First, try running the DirectX installer as an admin. Opening an installer as admin can often fix installation errors. To do that, you right-click the DirectX setup wizard and select Run as administrator.


Nothing happens when you click Run as administrator? Take a look at this useful guide to fix the issue easily.


2. Switch Off Third-Party Antivirus Software

Many users have fixed the “An internal system error occurred” error by disabling their third-party anti-virus software and then installing DirectX.

Most anti-virus utilities include a disable option on their system tray icon context menus that you can select to temporarily switch off the shields.

If you can’t find any such option on the context menu, open the anti-virus software’s window and browse through the configuration settings.

3. Install DirectX With DirectX End-User Runtimes

The “An internal system error occurred” system error more frequently occurs when installing DirectX with the runtime package’s web setup version (otherwise the web installer).

Thus, some users have found that DirectX installs ok with the alternative DirectX End-User Runtimes installer that you can download from this page.

Thereafter, run the installer, extract all files to a folder and then run the DXSETUP as an administrator from the folder that includes the extracted files.


Can’t install DirectX on Windows 10? Don’t worry, we’ve got the right solution for you.


4. Install DirectX Within an Admin Account

If you’re installing DirectX within a standard Windows user profile, you might need to install it within an admin account. You can set up a completely new admin profile.

Alternatively, you can switch your current standard profile to an admin one as follows:

  • Press the Windows key + R keyboard shortcut to open Run.
  • Input ‘netplwiz’ in the Open text box and click OK to open the window in the snapshot directly below.

  • Select your standard user profile and click Properties to open the window shown below.

  • Select the Group Membership tab, which includes the options in the shot directly below.

  • Select the Administrator option on the Group Membership tab.
  • Press the Apply and OK buttons to confirm the newly selected setting.

Learn everything there is to know about the administrator account and how you can enable/disable it right here!


5. Scan the Registry With CCleaner

  • Some users have also confirmed that a CCleaner registry scan can fix the “An internal system error occurred” error. To scan the registry with the freeware CCleaner, press the Download button on this page.
  • Then you can add CCleaner to Windows with its setup wizard.
  • Run CCleaner and click Registry to open the software’s registry cleaner.

Clean registry errors

  • Select all the check boxes and press the Scan for Issues button to initiate a scan.
  • Press the Fix selected Issues button. You can then select to save an optional registry backup, but you probably won’t need the backup copy.
  • Press the Fix All Selected Issues button to provide further confirmation.


Need additional options? Check out this list with the best registry cleaners to use today!


6. Edit the Registry

  • Another fix for the “internal system error occurred” error that some users have confirmed to work is to edit the DirectX registry key. To do that, open the Registry Editor by entering ‘regedit’ in Run’s Open text box.
  • The browse to this registry key: HKEY_LOCAL_MACHINESOFTWAREMicrosoftDirectX.
  • Select the DirectX key shown in the snapshot directly below.

  • Then double-click InstalledVersion on the right of the window to open the Edit Binary Value window.

  • Erase the value data within the Edit Binary Value window and replace it with this value: 0808 00 00 00 09 00 00 00.
  • Press the OK button to close the Edit Binary Value window.
  • Double-click Version to open the Edit String window shown below.

  • Delete the current value in the Value data text box.
  • Enter ‘4.09.00.0904’ in the Value data text box, and click the OK button.

If you can’t edit your Windows 10‘s registry, read this handy guide and find the quickest solutions to the issue.


Can’t access the Registry Editor? Things aren’t as scary as they seem. Check out this guide and solve the issue quickly.


So that’s how you can fix the “An internal system error occurred” error to install DirectX. You can also check out this article for further DirectX fixes.

If you have any other questions or suggestions, feel free to leave them in the comments section below.

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