Hi Simon,
Great to know different troubleshooting methods approached by you. you can also try
- Look for specific error messages during installation or in the Windows Event Viewer.
- Try installing to a different location with full permissions (not Program Files) and temporarily disable antivirus.
- Confirm if you tried completely uninstalling then reinstallation of MATLAB, ensuring complete removal of previous MCR installations.
- Verify your system meets requirements and update MATLAB/Runtime for potential fixes.
If nothing works you should reach out to technical support by attaching all the relevant files with versions you're using or try in other systme if its working then the issue will be in within you system.
Refer: https://www.mathworks.com/help/compiler/does-the-failure-occur-when-deploying-the-application-to-end-users.html and https://www.mathworks.com/help/compiler/does-the-failure-occur-when-testing-your-application.html, you can also refer to one of the MATLAB answers query simlar to this: https://www.mathworks.com/matlabcentral/answers/2013622-matlab-standalone-app-not-working-when-installed-on-another-system.
