Frontend operating system does not correspond to your selection

What causes this issue?

The function "Call Program Locally" is only active for "Display Local
File" if the current frontend operating system matches the operating
system you have selected.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

If you want to display an external application locally on your frontend
using the "Execute" function, the frontend operating system must be the
same as the operating system you have selected.

Error message extract from SAP system. Copyright SAP SE.