I've installed Mathematica new releases before on my PC.

This is the first time it asks to restart the PC at the end of the installation of V 13.1. This is on windows 10.

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The question is, why in this version one needs to restart the PC?

Just curious that is all. It not a big deal to restart the PC. Just wondering why only this happened in this version and in none of the earlier versions of Mathematica as far as I remember.

  • 1
    $\begingroup$ Is version 13.1 already available for downloading for everyone? It wasn't announced yet... $\endgroup$ Commented Jun 29, 2022 at 14:14
  • 5
    $\begingroup$ @AlexeyPopkov yes, it is available. I downloaded it from the my user portal account. see chat also, others have downloaded it and installed it. $\endgroup$
    – Nasser
    Commented Jun 29, 2022 at 14:18
  • $\begingroup$ Is it still possible to manually set the number of parallel kernels in V 13.1 like in previous versions? $\endgroup$ Commented Jul 1, 2022 at 12:20
  • $\begingroup$ @Nasser What is the release id for your version of 13.1: AssociationMap[SystemInformation[#,"ReleaseID"]&,{"Kernel","FrontEnd"}]? $\endgroup$
    – user13892
    Commented Jul 2, 2022 at 2:04
  • 1
    $\begingroup$ @user13892 will let you know once I restart my PC. I have not been able to do that yet, as I am running a program which takes days to finish something. Once it is done, will let you know. $\endgroup$
    – Nasser
    Commented Jul 2, 2022 at 4:37

1 Answer 1


13.1 and later are using the dynamic version of Microsoft's C++ Runtime library. If another application was using it when the installer was run, then you might need to reboot your machine.


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