How can i update the default matlab mcr version to a new one?

I am running Matlab2015a in windows 10 (64bits) and i need to update de matlab runtime from the default version (v8.5) to runtime version 9.0 . I have downloaded and installed it but it doesn,t work.

[Adam]

What do you mean by "doesn't work"? What are you trying to do and what is the problem you get?

[Walter Roberson]

Remember that the MCR version used is always the one that the executable was compiled against. If you have something that was already compiled, it will ignore all other MCR versions.

[David Fernandez]

I am running a series of matlab files in order to estimate the demand for electricity in Spain. One of that matlabs files is "EXE_estimacion.exe" and it does the estimation using multiples CPUs(i have installed an intel i7). When I try to do the estimation with runtime 8.5, matlab run this file but never calculate anything. I have installed runtime 9.0 but it doesn,t fix the problem with this file.

[Walter Roberson]

Installing extra runtime will not change the execution of the exe. Each exe can use only the version of mcr it was compiled for. mcr are not backwards compatible, so installing a newer version would not give bug fixes for previous versions.