Why does the MATLAB R12 and R13 installer repeatedly ask me to install Microsoft Java Virtual Machine?

Solution:

For MATLAB Release 12, sometimes the MATLAB installer incorrectly detects what version of the Java Virtual Machine you have installed on your computer. When you place the CD in the drive it automatically runs a file called setup.exe that will call the JVM installer if it detects an older version of JVM.

To get around this detection problem, place the CD in the drive and select 'No' when it prompts you to install JVM. Explore the CD and run the file jins.exe. This is the MATLAB installer. You should be able to complete the installation process normally.

If you are downloading MATLAB and need the JVM file to install, you can download it from our web site at the bottom of this solution.

If MATLAB still prompts you to install the JVM, you can resolve this by removing the msjava.dll file from the C:\<Win_dir>\system32 folder (where <Win_dir> is the Windows directory). For example:

C:\Windows\system32\
C:\WINNT\system32\

Once removed, reboot and try running the jins.exe or msjavx86.exe once again.


For all other releases, if you experience this problem please contact the Installation Support team by going to this website and creating a service request:

http://www.mathworks.com/support/contact_us/index.html