Why do I get the error "This driver has been blocked from loading" when trying to install the Simulink Desktop Real-Time kernel?

When trying to install the Simulink Desktop Real-Time kernel following the documented steps, I encounter the following error:

Error using sldrtkernel>RunInstaller (line 776)
Installer error: "Failed to start Simulink Desktop Real-Time kernel service.
This driver has been blocked from loading".

Error in sldrtkernel>sldrtk_setup (line 132)
result = RunInstaller(prompt, 'install');

Error in sldrtkernel (line 67)
retval = sldrtk_setup(prompt);

I am working on an M2 Macbook Air which is running Windows 11 Pro using Parallels. Both my MATLAB and my Windows are 64-bit. Why is this happening?

Answer 1

[MathWorks Support Team]

This is a known issue that occurs when working on a machine that does not have a native x86 CPU. Examples of such configurations include using an Apple Silicon MacBook emulating Windows (with a software such as Parallels), and certain Windows machines such as the Surface Pro 11. While many x86 applications can run in emulation mode on ARM CPUs, the Simulink Desktop Real-Time kernel runs in a privileged mode where the different CPU architecture cannot be emulated.

The only available workaround is to switch to a machine with a native x86 CPU.